5 PROCESSING OCCUPATIONS
550.682-010 to 558.482-010
This category includes occupations concerned with refining, mixing,
compounding, chemically treating, heat treating, or similarly working materials and products.
Knowledge of a process and adherence to formulas or other specifications are required in some
degree. Vats, stills, ovens, furnaces, mixing machines, crushers, grinders, and related equipment
or machines are usually involved.
550.682-010 SIZE MAKER (paper & pulp)
Operates equipment to cook and mix materials, such as
starch, casein, resin, chemicals, and fillers, according to formula to make size for pulp paper:
Turns valves to fill cooking vats with metered volumes of liquid ingredients and dumps specified
amounts of solid ingredients into vats according to formula. Turns steam valves or adjusts burner
to maintain specified temperature in vats for cooking starch, resin, or casein with water, lime,
and chemicals. Opens drain valve or starts pump to transfer cooked material to mixing machine,
dumps specified weights of alum, lithopone, clay, or titanium dioxide into machine, and starts
machine to mix ingredients for specified length of time. Adds chemicals to mixture, according to
specification, to prevent decomposition. Drains or pumps size to specified storage tanks.
GOE: 06.04.14 STRENGTH: H GED: R3 M2 L2 SVP: 5 DLU: 77
550.682-014 TANNING-SOLUTION MAKER (chemical)
Controls series of vats that boil tanbark, quebracho,
chemicals, and water to prepare tanning solution: Weighs specified amounts of materials on scale
and dumps them into vat. Opens valves to admit water and steam into vat. Adjusts steam valve to
maintain solution at specified temperature. Tests sample of solution for specific gravity, using
hydrometer. Adds materials to solution to obtain solution of specified gravity. Starts pump to
transfer solution from vat to storage tank. May grind bark or wood, using grinding machine.
GOE: 06.04.11 STRENGTH: M GED: R3 M1 L2 SVP: 5 DLU: 77
Prepares coagulating bath used to transform cellulose
slurry into rayon filaments, according to formula or proportion chart and process specifications:
Measures prescribed types and quantities of bath ingredients, depending on forming process used
in plant. Dumps or pumps ingredients, such as caustic soda or sulfuric acid, sodium sulfate, zinc
sulfate, and glucose into mixing tank for transfer to trough containing water into which slurry is
extruded. Tests acidity or alkalinity of bath at specified intervals, using pH meter, and adds
additional ingredients to maintain solution at prescribed standard. May be designated
Acid-Correction Hand (plastic-synth.) in plants producing rayon by viscose process.
GOE: 06.04.11 STRENGTH: M GED: R3 M2 L2 SVP: 4 DLU: 77
550.684-014 DYE WEIGHER (any industry) alternate titles: chemical weigher; color
weigher; drug-room clerk; dye maker; dyer assistant
Mixes dyes and chemicals for use in dyeing products,
such as fabrics, hosiery, and yarns: Weighs out quantities of powdered or liquid dyes and
chemicals, following formula sheet. Pours dyes and chemicals into pail or mixing tank and turns
valve to admit water into tank or pail up to mark on container wall. Stirs ingredients with paddle
and injects steam into solution to dissolve dye. Dumps contents of pail into supply tank or turns
valves to transfer dye solution from mixing tank to supply tanks in dye room. Inventories dyes
and chemicals and notifies DYER, SUPERVISOR (knitting; tex. prod., nec; textile) 582.131-014
as supplies are needed. May be designated according to dye mixed as Indigo Mixer (textile).
GOE: 06.04.34 STRENGTH: H GED: R3 M2 L2 SVP: 3 DLU: 81
550.684-018 PAINT MIXER, HAND (any industry)
Mixes stains, paints, and other coatings for use in
painting according to formulas: Pours pigments, paint paste, vehicle, and thinner into can. Stirs
mixture with paddle. Compares mixed liquid with desired color sample to ensure that it matches.
May blend colors to obtain desired shades. May test specific gravity of mixture, using
hydrometer. When mixing colors for spray painting, may be designated Spray Blender (any
industry).
GOE: 06.04.34 STRENGTH: L GED: R2 M1 L1 SVP: 3 DLU: 77
Weighs and blends powdered ingredients to form priming
mixtures for small arms ammunition: Weighs specified amounts of pulverized and sifted
ingredients and filters them by hand in prescribed order through silk screen onto blending paper.
Lifts each corner of paper and pulls slowly toward diagonally opposite corner to fold and blend
powder until examination of color shade indicates blending is accomplished. Pours mixture from
paper into cardboard containers and marks containers with identifying data.
GOE: 06.04.34 STRENGTH: L GED: R2 M1 L2 SVP: 3 DLU: 77
550.684-026 SILVER-SOLUTION MIXER (chemical)
Mixes silver solutions for spraying lacquer disks (original
recording): Measures prescribed quantities of premixed silver solution and combines with
distilled water. Tests mixed solution for conformity to standards, using laboratory test
equipment. Deposits mixture in containers or spray tanks. May analyze plating solutions for
conformity to standards.
GOE: 06.04.34 STRENGTH: L GED: R3 M2 L2 SVP: 3 DLU: 77
550.685-010 BATCH MIXER (soap & rel.)
Tends mixer that compounds cleaning powder: Opens
valves to admit specified quantities of ingredients into mixer or weighs and dumps ingredients
into mixer, using scale. Presses button or moves lever to activate mixer that blends ingredients
for designated time. Stops machine and opens valve to discharge cleaning powder into storage
bins. May draw sample of blended ingredients for laboratory analysis. May keep production log.
GOE: 06.04.19 STRENGTH: M GED: R2 M1 L1 SVP: 3 DLU: 77
550.685-014 BLENDER I (chemical)
Tends machine that blends batches of flushed colors
derived from coal tar hydrocarbons: Dumps specified flushed pigments or dyes into tub of
machine, using hoist. Adds specified chemicals to batch according to product specifications.
Starts agitator to mix ingredients for specified time. Turns valves to pump blended pigments or
dyes into storage tanks or drums.
GOE: 06.04.11 STRENGTH: M GED: R2 M1 L1 SVP: 2 DLU: 77
550.685-018 BRINE MAKER I (chemical)
Tends tanks, filters, and auxiliary equipment that produce
brine solution for use in electrolytic cells: Pumps water through salt beds or starts conveyor
bringing salt from storage area for dissolution in water, producing mixture of specified salt
content. Admits salt water and specified amounts of liquid chemicals, such as caustic soda or
acid, to mixing tank to produce brine solution meeting plant standard. Pumps solution to settling
tank to settle out impurities and through sand-bed filters for final purification. Draws sample of
brine for laboratory analysis or tests density, salt content, and acidity, using hydrometer,
salinometer, and pH meter. Turns valves to transfer brine to electrolytic cells and maintain brine
at specified levels in supply lines, tanks, and cells. May dump materials into brine to adjust
chemical composition to plant standard, using titration test to determine strength of solution.
May pump water through resin and carbon beds to demineralize it. May tend heat exchanger to
maintain temperature of brine within specified limits. When pumping brine through filters only,
is designated Brine Purifier (chemical).
GOE: 06.04.11 STRENGTH: M GED: R3 M2 L2 SVP: 3 DLU: 77
550.685-022 CD-MIXER (rubber reclaim.)
Tends machine that mixes ground scrap rubber with
pigments, caustics, and oils to prepare rubber for devulcanization: Pulls slide on gravity chute or
shovels ground scrap rubber into weigh hopper. Pulls lever to dump scrap rubber from weigh
hopper into mixer. Measures and weighs pigments, caustics, and oils according to formula, and
dumps or drains them into mixer. Starts machine that mixes materials for specified time. Pulls
lever to release mixture from machine into pans. Lifts pans onto heater cars by hand or with
hoist. Signals worker to move pans of mixed stock into heaters. May tend cracker mill that grinds
scrap rubber into particles [GRINDER (rubber goods; rubber reclaim.)]. May unload heaters and
dump devulcanized scrap rubber from pans. May line pans with waxed paper or sprinkle with
pulverized soapstone to prevent rubber from sticking.
GOE: 06.04.13 STRENGTH: M GED: R2 M1 L1 SVP: 3 DLU: 77
Tends machine that mixes synthetic or natural rubber
with solvents and chemicals to produce liquid rubber cement: Weighs and measures specified
amounts of rubber, chemicals, and solvents, according to mixing instructions. Breaks down full
batch formulas into partial batches and samples. Presses buttons to activate electrically driven
paddles that stir mixture, or stirs mixture by hand, using paddle. Opens petcock of mixer to
discharge cement into cans, or opens pipeline valves to transfer cement. Records types of cement
mixtures and production of each.
GOE: 06.04.13 STRENGTH: H GED: R2 M1 L2 SVP: 3 DLU: 77
550.685-030 CHEMICAL PREPARER (chemical; electron. comp.)
Tends equipment that compounds ingredients into
chemical solutions used as adhesive or conductive coatings for electron tubes: Weighs and
measures specified type and quantity of liquid and powdered ingredients. Pours, dumps, or
pumps ingredients into mixing equipment. Starts equipment that compounds chemical
ingredients and deionized water into chemical solutions, such as frit or conductive graphite. Tests
mixture for conformance to prescribed standards, using testing devices, such as pH meter,
resistivity meter, titration apparatus, colorimeter, thermometer, and viscometer. Pours
compounded product into containers for application to tube seams, funnel, or ceramic parts by
other workers.
GOE: 06.04.11 STRENGTH: L GED: R3 M3 L3 SVP: 4 DLU: 88
550.685-034 CHURN TENDER (plastic-synth.)
Tends rotary mixer that blends aged alkali-cellulose
crumbs with carbon disulfide to form cellulose xanthate for further processing into cellophane or
rayon: Couples pipe to mixer to admit specified amount of carbon disulfide to churn (mixer
chamber) filled with alkali-cellulose crumbs by other workers. Starts drum rotating, observes
gauges, and moves or sets controls to maintain temperature of churn and length of mixing cycle
within plant specifications. Stops machine and turns valve to expel excess gas remaining in
drum. Opens hatch and dumps cellulose xanthate into cart or machine hopper for further
processing. Scrapes interior of drum, using putty knife or scraper, to remove product residue
before preparation of next batch. May tend continuous process equipment and be designated
Disulfurizer Tender (plastic-synth.). May blend cellulose xanthate and caustic soda and be
designated Tank Worker (plastic-synth.).
GOE: 06.04.13 STRENGTH: L GED: R3 M2 L2 SVP: 3 DLU: 77
550.685-038 COLOR-PASTE MIXER (textile)
Tends machine to mix color paste for use in printing
textiles: Measures out specified amounts of base colors and thickener, using calibrated ladles and
spoons. Mixes ingredients in tub, using power mixer, and observes mixture to determine when
ingredients have combined. Smears sample of printing paste on cloth and submits sample smear
to COLORIST (profess. & kin.) for comparison with color standard. Adds base colors to mixture
when advised by COLORIST (profess. & kin.). May strain color paste through cloth to remove
lumps. May convey tubs of color to printing machine, using handtruck.
GOE: 06.04.11 STRENGTH: M GED: R3 M2 L2 SVP: 3 DLU: 77
550.685-042 COMPOUND FINISHER (chemical)
Tends mixing machine to finish mixing of matchhead
compound to produce mixture of specified viscosity: Lifts kettles of compounds from cart onto
mixer with hoist. Starts mixer and pours dye solution into compound. Sets thermostat or opens
valve to admit steam into jacket around kettle to heat compound if specified, and verifies
temperature with thermometer. Fills graduated dipper with compound and times flow of
compound from dipper with stopwatch to test viscosity. Adds specified ingredient according to
test results until viscosity is correct.
GOE: 06.04.11 STRENGTH: M GED: R2 M1 L1 SVP: 3 DLU: 77
550.685-046 COMPOUNDER (pharmaceut.; soap & rel.)
Tends mixer tanks and compounding kettle that mix and
compound tinctures, perfumery solutions, color solutions, essential oils, and aromatic synthetics
for use in manufacture of creams, perfumes, soaps, and powders: Weighs out specified types and
quantities of liquid or solid ingredients in balance scale or scale tank, according to formula.
Drains solution from scale tank into strainer pan to filter foreign particles. Dumps or pumps
solution into compounding kettle that automatically washes it with alcohol to remove odors or
adjusts valves and observes thermostat to heat solution as specified. Pumps solution into mixer
tank that blends it for specified time, and through filter press for further purification. Drains
sample for laboratory analysis. May test solution for color. May grind ingredients, such as castor
bags or vanilla beans, using machine or hand grinder.
GOE: 06.04.11 STRENGTH: H GED: R3 M2 L2 SVP: 4 DLU: 77
550.685-050 COMPOUNDER (chemical)
Tends machines that grind and mix ingredients, such as
glue, dyes, water, chemicals, and resins, according to specifications, to produce compounds used
in heads and striking surfaces of kitchen, penny, and book matches: Dumps chemicals, dyes, and
other ingredients into sifting and grinding machines and starts machines to sift and grind
ingredients, according to specifications. Dumps or pours specified quantities of ingredients into
mixing machine and starts machine to mix ingredients, according to specifications. Measures
viscosity of ingredients, using viscometer. May submit sample to laboratory for testing.
GOE: 06.04.11 STRENGTH: H GED: R2 M1 L1 SVP: 3 DLU: 77
550.685-054 CRUTCHER (soap & rel.)
Tends machines that mix specified quantities and types of
liquid, powder, and paste ingredients to form slurry for processing into soap products, such as
bars, flakes, chips, and granules: Pulls slide from discharge chute of hopper to admit preweighed
dry materials into tank, or shovels preweighed solid ingredients into tank. Opens valves to add
specified amount of water, paste, or steam. Starts agitator to mix materials for prescribed period
of time. Observes gauge and adjusts valves to maintain specified temperature. Weighs and
dumps specified additional ingredients or adjusts scale tank and pumps in additional ingredients.
Turns valve to pump completed batch to booster tank, or shovels completed batch into
wheelbarrow. Draws sample of slurry for laboratory analysis. Records number of batches mixed.
GOE: 06.04.19 STRENGTH: M GED: R3 M2 L2 SVP: 4 DLU: 77
550.685-058 DUSTLESS OPERATOR (chemical)
Tends machine that mixes powdered carbon black with
water or binding agents in rotating drum to form pellets: Starts machine and turns valves to admit
and regulate flow of water or binding agents into mixing drum. Examines and feels samples of
product to verify that pellet size and moisture content meet specified standards. Opens inspection
ports and observes conveyor system to detect jamming.
GOE: 06.04.19 STRENGTH: L GED: R3 M1 L2 SVP: 3 DLU: 77
550.685-062 GLUE MIXER (any industry)
Tends agitator tanks that mix ingredients to produce
chemical compounds, such as sealants, adhesives, fillers, and linoleum paste: Weighs and
measures ingredients, such as casein, clay, flour, glue powder and gelatin, lignin, resins, and
liquid catalysts or water, following prescribed formula, and dumps, pours, pumps, or scoops
ingredients into machine, tank, or kettle. Pushes button to start agitators that blend ingredients.
Observes mixing process and adds ingredients according to specifications. Manipulates controls
to drain mixture from tanks or kettles. May draw product sample for laboratory analysis. May
cook mixture, using steam-jacketed kettle. May manually mix compounds. May mark identifying
information on containers. May record amount of product mixed. May be designated according
to product mixed as Sealant Mixer (aircraft mfg.).
GOE: 06.04.19 STRENGTH: H GED: R3 M2 L2 SVP: 3 DLU: 87
550.685-066 GROUND MIXER (chemical)
Tends agitator and auxiliary equipment to mix pigments
according to specifications for use in ground coating and coloring on wallpaper: Measures and
mixes ingredients in electric agitator to make sizing compounds. Dumps bags of powdered clay
into mixing vat, and turns valves to add water. Starts pump to transport specified quantity of
sizing compound from drum into mixing vat, and starts agitator. Loosens lumps of clay from
sides of vat during mixing process, using paddle. Moves drums of base solution about work area,
using handtruck.
GOE: 06.04.11 STRENGTH: H GED: R2 M1 L1 SVP: 2 DLU: 77
550.685-070 INSECTICIDE MIXER (chemical)
Tends machine and equipment that mix liquid and dry
ingredients according to formula to produce insecticides, pesticides, and fungicides: Weighs,
measures, or turns valves to admit specified quantities and type of ingredients into mixer. Starts
mixer to blend ingredients. Turns valve, pulls lever, or presses button to transfer mixture to
storage tank or filling machine. Records quantity and type of ingredients mixed. May draw
sample of product for laboratory testing.
GOE: 06.04.11 STRENGTH: H GED: R2 M1 L1 SVP: 2 DLU: 77
550.685-074 MIXER I (tex. prod., nec)
Tends agitator tanks, portable mixing machines, and
related equipment to produce compounds for coating and waterproofing fabrics: Measures and
weighs materials, such as oils, pigments, plasticizers, resins, stabilizers, fillers, color concentrate,
and water according to formula. Trucks drums of ingredients to mixers and dumps them into
mixing chamber, using hoist, tilt, or by hand. Starts mixer to blend ingredients. Drains
ingredients into storage tanks, buckets, or drums. Scrapes and cleans mixers, using hand scraper
and solvents. May pump specified amounts of liquid plasticizer into supply containers or mixing
chamber, as directed.
GOE: 06.04.11 STRENGTH: H GED: R3 M2 L1 SVP: 3 DLU: 77
Tends mixing machines that blend solid and liquid
ingredients to make products, such as paints, lacquers, putty, paint pigments, and binders,
following formula: Turns valves or sets pump meters to admit specified amounts of liquids, such
as oils, solvents, and water into mixer. Weighs and dumps specified amounts of dry ingredients,
such as plastic flash, color concentrates, and resins into mixer, as indicated on batch ticket, or
dumps preweighed ingredients into tank. Pushes or pulls tank to dispersion mixing machine.
Depresses pedal to lower mixing blades into tank and presses button to start blades revolving to
mix and disperse ingredients. Turns valves to drain batch through hoses into pebble or ball mill
or into holding tank. Draws sample from batch for laboratory test and adds ingredients to mixture
as specified by laboratory. May clean equipment, using rags, solvent, and scraper. May be
designated according to product mixed as Glass Enamel Mixer (paint & varnish); Lacquer
Blender (paint & varnish); Paint Maker (paint & varnish); Paste Mixer (paint & varnish);
Pigment Mixer (paint & varnish); Putty Maker (paint & varnish).
GOE: 06.04.11 STRENGTH: H GED: R3 M1 L2 SVP: 3 DLU: 78
Tends mixing machine that blends liquid and solid
materials into chemical solutions and slurries used in manufacturing various products: Transfers
materials to work area, using handtruck or forklift. Weighs materials according to formula or
proportion tables, dumps materials into mixing chamber, and starts machine to mix materials.
Examines or feels mixture or observes gauges or timer to determine when mixing is completed,
and stops machine. Dumps or shovels material from mixing chamber onto conveyor or into
containers for storage, shipment, or further processing, or turns valves or starts pumps to transfer
mixed materials to designated processing areas. May test sample to ensure material meets
specifications. May tend auxiliary equipment, such as grinders or driers, to prepare ingredients or
process product.
GOE: 06.04.11 STRENGTH: H GED: R2 M2 L2 SVP: 3 DLU: 86
550.685-086 MIXER, FOAM RUBBER (rubber goods)
Tends machine that mixes foam rubber particles with
liquid latex and discharges mixture into molds to make products, such as cushions and
mattresses: Opens storage bin chute to transfer ground particles to barrel. Weighs barrel, adds or
removes foam rubber particles to obtain specified weight, and dumps material into mixing
machine. Weighs and pours specified amount of latex into machine and starts machine that mixes
ingredients. Places mold under discharge spout of machine and fills mold with mixture. May
grind foam rubber, using powered grinding machine. May tend hydraulic press that cures filled
molds to form cushions and mattresses [MOLDER, FOAM RUBBER (rubber goods)].
GOE: 06.04.13 STRENGTH: M GED: R2 M1 L1 SVP: 2 DLU: 77
Tends mixing machines, agitator tanks, kettles, roller
mills, and related equipment to compound and process ingredients according to formula to make
powdered, liquid, paste, or cream chemical products: Weighs ingredients and dumps, pours,
pumps, or shovels them into machine, tank, or kettle. Turns controls to achieve specified
temperature. Starts agitator to mix ingredients for specified time. Adds ingredients as specified
during mixing cycle. Tests solution for specific gravity, viscosity, or acidity, using testing
devices, or submits sample to laboratory. May cook mixture, using steam-jacketed kettle. May
pump mixture through homogenizer to prepare emulsions or through filter press to remove
impurities. May connect waterlines between deionizer, filter press, and vapor and storage tanks
to purify water for use in products. May drain product into other machine units or into storage
tanks. May be designated according to type of product mixed as Chemical Mixer (pharmaceut.);
Cream Maker (pharmaceut.); Dental-Cream Maker (pharmaceut.); Dye Mixer (photo. appar.);
Liquid Compounder (pharmaceut.) II; Ointment-Mill Tender (pharmaceut.). May be designated:
Perfume And Toilet Water Maker (pharmaceut.); Powder Compounder (pharmaceut.); Powder
Mixer (chemical); Roller-Mill Tender (pharmaceut.); Rouge Mixer (pharmaceut.).
GOE: 06.04.11 STRENGTH: H GED: R3 M2 L2 SVP: 4 DLU: 77
550.685-094 PEARL-GLUE OPERATOR (chemical)
Tends equipment that converts liquor glue into pearl glue
(pearl-like bits): Opens valve to fill tank with gasoline. Starts refrigerant-circulating pumps to
cool gasoline to required temperature. Pumps liquor glue through pearler-head tubes that deposit
drops of glue into refrigerated gasoline to form pearl glue.
GOE: 06.04.19 STRENGTH: L GED: R2 M1 L1 SVP: 3 DLU: 77
550.685-098 POWERHOUSE HELPER (chemical)
Tends mixing machine to blend phosphate, soda ash,
lime, and other water-conditioning agents for use as binding agent for making carbon black:
Starts pumps to transport ingredients into blending tanks. Starts mixing machine to blend
ingredients. Starts pumps to transport mixture to storage tanks feeding furnace boilers of carbon
manufacturing plant. Keeps log of gauge readings, such as water temperature and level in boilers
and storage tanks.
GOE: 06.04.19 STRENGTH: M GED: R2 M1 L1 SVP: 3 DLU: 77
Tends rubber milling machine to mix, blend, knead, or
refine scrap, crude, synthetic, or precompounded rubber for further processing: Starts machine
and turns valves on steam and cold waterlines to regulate temperature of rolls. Lays rubber slabs
between rolls of mill. Cuts stock with knife, rolls it into bundle, and feeds stock back into mill
until rubber reaches specified consistency. Sets adjustable knives against mill roll to cut
continuous strip as rubber emerges from mill and feeds strip onto conveyor that carries strip to
calenders or extruders, Adjusts clearance between mill rolls, using wrench. May wash or crack
crude rubber by passing it through corrugated mill rolls and water spray. May weigh and measure
liquid and dry chemicals and add them to rubber during kneading process. May be designated
according to specialized operation performed as Mill Tender, Break-Down (rubber goods; rubber
tire); Mill Tender, Warm-Up (rubber goods; rubber tire); Mill Tender, Washing (rubber goods;
rubber tire); Mix-Mill Tender (rubber goods; rubber tire); Slab-Off Mill Tender (rubber goods;
rubber tire).
GOE: 06.04.13 STRENGTH: H GED: R2 M2 L2 SVP: 3 DLU: 77
550.685-106 SEASONING MIXER (chemical)
Tends equipment that mixes various pigments, lacquers,
or chemicals used to color, coat, clean, or soften hides or skins: Pours specified ingredients into
rotary mixing drum or mixing vat, according to formula. Moves lever to rotate drum, or lowers
automatic mixing paddle into vat and moves switch to rotate paddle. Opens door of drum or tips
vat to pour mixture into buckets. Delivers buckets to other workers, using handtruck. May be
designated according to product mixed as Degreasing-Solution Mixer (chemical);
Finishing-Compound Mixer (chemical); Pigment And Lacquer Mixer (chemical).
GOE: 06.04.11 STRENGTH: L GED: R2 M2 L2 SVP: 3 DLU: 77
550.685-110 SWEEPING-COMPOUND BLENDER (chemical)
Tends machine that mixes ingredients, such as dye, oil,
sand, sawdust, and water to make sweeping compound: Measures or weighs out ingredients
according to formula. Dumps or pours ingredients into mixer. Starts agitator or tumbler and
mixes ingredients for specified time. Turns valve to drain mixture into barrels. Weighs barrel on
floor scale to determine weight. May clean mixers, scales, kettles, and work area, using rags and
solvent. May pack and seal products in wooden cases and label cases and barrels.
GOE: 06.04.11 STRENGTH: H GED: R2 M1 L2 SVP: 3 DLU: 77
550.685-114 TETRYL-DISSOLVER OPERATOR (chemical)
Tends equipment to dissolve crude tetryl in heated
benzene for manufacture of explosives: Starts pump to transport benzene in weighing tank and
turns valve to transfer it to dissolving tank. Admits steam to outer jacket of dissolving tank to
heat solvent. Weighs out raw tetryl on scale and scoops it into tank with heated solvent. Starts
agitator to mix solution for prescribed time. Turns valve to transfer solution to crystallizer for
recovery of solvent.
GOE: 06.04.11 STRENGTH: L GED: R3 M1 L2 SVP: 3 DLU: 77
550.685-118 TUMBLER OPERATOR (chemical)
Tends tumbling machine that blends ingredients of
pyrotechnic powder for use in signal flares: Pours roughly mixed ingredients into tumbler.
Closes door of tumbler, and starts tumbling machine to blend ingredients for specified period of
time. Scoops blended mixture into container.
GOE: 06.04.11 STRENGTH: M GED: R2 M1 L1 SVP: 2 DLU: 77
550.685-122 WEIGHER AND MIXER (chemical)
Tends machines that mix ingredients, such as pigments,
resins, varnishes, solvents, and oils to produce ink or ink paste: Reads specifications to determine
type and quantity of ingredients to be mixed. Starts pumps to transport preweighed liquid
ingredients from storage tanks into containers. Weighs specified amounts of pigments and adds
them to containers. Dumps contents of containers into rotary mixer, using hoist, or moves
container onto bed of mixer and turns wheel that lowers mixing blades into containers. Starts
motor to mix ingredients for predetermined time. Draws sample or scoops sample of solution for
laboratory analysis. Adds ingredients as directed by laboratory, or extends mixing period to
attain prescribed consistency. Scoops or pumps ink or ink paste to holding tanks or into
containers. May heat solvents in kettle or with steam coil to remove chill before adding
pigments.
GOE: 06.04.11 STRENGTH: H GED: R2 M1 L1 SVP: 4 DLU: 77
550.685-126 WET MIXER (chemical)
Tends machine that mixes ground phosphate with sulfuric
acid to produce superphosphate: Pulls levers to open storage tank or hopper and admit materials
into weighing hopper of machine. Pulls lever to open bottom of weighing hopper and dump
materials into mixer. Tests sulfuric acid to determine if strength and temperature meet
specifications, using hydrometer and thermometer. Starts mixer and blends materials for
specified time. Pulls lever to dump mixed materials into storage pit. Records weight of materials
mixed.
GOE: 06.04.11 STRENGTH: L GED: R2 M1 L1 SVP: 2 DLU: 77
550.685-130 MATERIAL MIXER (plastic prod.)
Tends drum-tumbling machine that mixes ingredients,
such as resins, color pigments, and additives, for use in fabrication of plastic cosmetic packaging:
Lines drum with plastic bag. Presses control to activate hopper that automatically fills drum with
specified ingredients, or dumps measured ingredients into drum according to formula, using hand
scoop and scale. Conveys filled drum to tumbling machine, using handtruck. Mounts and secures
drum in holding device of machine, turns knob to set timing control, and presses button to
actuate drum-tumbling action. Removes drum from machine at end of cycle and conveys drum to
specified production machine, using handtruck.
GOE: 06.04.13 STRENGTH: V GED: R2 M2 L2 SVP: 2 DLU: 86
Tends machines that mix chemical ingredients, such as
resins, plasticizers, solvents, and coloring matter with filler to produce plastics materials:
Weighs, measures, and combines ingredients according to formula, and dumps or pours
ingredients into mixer. Turns valves to pump liquid ingredients into mixer. Starts agitator to mix
batch for specified time. Turns wheel or valves, opens gates, or presses switch to tilt mixer to
discharge compound into containers, storage tanks, or hoses. Posts operating information in log.
May wash equipment, using hose and brushes. May turn steam and water valves and observe
gauges to regulate temperature of mix. May dry material in atmospheric drier. May be designated
according to operation performed as Blender (plastic prod.; plastic-synth.); Color Mixer (plastic
prod.; plastic-synth.); Resin Compounder, Batch Lot (plastic-synth.); Solution Mixer
(plastic-synth.).
GOE: 06.04.13 STRENGTH: M GED: R3 M2 L2 SVP: 4 DLU: 78
550.686-010 BATCH TRUCKER (rubber reclaim.)
Feeds specified quantities and types of ground
devulcanized scrap rubber into mix mill to prepare batch for processing: Shovels mixture into
monorail bucket or pushtruck, and dumps mixture into designated chute or onto feed conveyor of
mix mill. Records batches produced. May drive scooptruck to transport mixture. May add
specified pigments to mixture when blending.
GOE: 06.04.13 STRENGTH: M GED: R1 M1 L1 SVP: 2 DLU: 77
550.686-014 COMPOUND FILLER (chemical)
Feeds supply of compounds and dope in tanks at dip
conveyors for forming and treating heads of kitchen, penny, and book matches: Dips compounds
from kettle into respective feed containers that automatically maintain tank level. Mixes
specified solution of glyoxal and water, that hardens formed matchhead, and pours solution into
dope tank. Removes and replaces dirty screens in dip tanks. Verifies level and temperature of
paraffin in dip tanks. Pushes kettle trucks to and from compound room and dip area.
GOE: 06.04.11 STRENGTH: H GED: R1 M1 L1 SVP: 2 DLU: 77
550.686-018 CRUTCHER HELPER (soap & rel.)
Weighs and dumps specified dry materials into feeder
hopper of crutcher equipment, that forms slurry for processing into soap powder: Opens valves
of supply tanks and waterlines to add prescribed liquid and paste. Mixes dye according to
specifications and dumps dye into batch. Changes and cleans strainers. Sweeps and cleans work
area.
GOE: 06.04.19 STRENGTH: H GED: R2 M1 L1 SVP: 2 DLU: 77
550.686-022 GLAZING OPERATOR, BLACK POWDER (chemical)
Feeds grain powder, graphite, and other materials into
glazing barrels: Dumps specified amounts of graphite, grain powder, and other ingredients into
mechanically rotated glazing barrels that smooth out and lubricate powder. Opens barrel door to
discharge contents into containers. May time rotation (glazing) period, using watch.
GOE: 06.04.19 STRENGTH: H GED: R3 M1 L1 SVP: 4 DLU: 77
550.686-026 MIXER HELPER (build. mat., nec)
Dumps asphalt resin chunks into heating kettle to liquefy
resin used as binding sealer in asphalt shingles. Chops resin into pieces, using ax, and feeds
pieces into kettle. Lifts screen on return flow trough and removes foreign matter from screen by
hand.
GOE: 06.04.19 STRENGTH: L GED: R1 M1 L1 SVP: 2 DLU: 77
550.686-030 MIXING-MACHINE FEEDER (chemical)
Feeds dry chemical ingredients used in manufacture of
fertilizer and insecticides into mixing machine. Empties hoppers or sacks of specified ingredients
into machine or elevator bucket, using forklift truck or by hand. May start elevator to empty
buckets into machine.
GOE: 06.04.11 STRENGTH: H GED: R1 M1 L1 SVP: 2 DLU: 77
Dumps color mix into hoppers of designated
color-depositing machines: Scoops mix from bins and dumps it into hopper. Adds specified
ingredients as directed. Breaks up lumpy color in feedlines, using long-handled stick. Cleans
roller blades, using scraper.
GOE: 06.04.19 STRENGTH: H GED: R2 M1 L1 SVP: 2 DLU: 77
Assists ROOF-CEMENT-AND-PAINT MAKER
(nonmet. min.) in making roof cement: Weighs sacks filled with materials to make roof cement
and paint and dumps contents from sacks onto conveyor leading to mixing machine. Places cans
under spigot of mixing machine. Performs other duties as described under HELPER (any
industry) Master Title.
GOE: 06.04.11 STRENGTH: H GED: R1 M1 L1 SVP: 2 DLU: 77
550.687-010 CHEMICAL-COMPOUNDER HELPER (chemical)
Shovels specified chemicals into tank of heated water to
dissolve chemicals preparatory to charging mixing kettle that produces optical brightener
(organic white dye) for soaps and fabrics. Moves drums of chemicals to work area, using
handtruck. May read work orders to determine type and amount of chemicals to add to kettle.
May be designated according to material produced as Optical-Brightener-Maker Helper
(chemical).
GOE: 06.04.11 STRENGTH: M GED: R2 M1 L1 SVP: 2 DLU: 77
550.687-014 COLOR STRAINER (textile)
Assists COLOR-PASTE MIXER (textile) in mixing color
for use in printing textiles: Strains mixed colors through vacuum or other straining device to
remove lumps and foreign matter. Carries colors to and from mixing area. Cleans working area
and mixing equipment, using water hose. May mix colors. Performs other duties as described
under HELPER (any industry) Master Title.
GOE: 06.04.16 STRENGTH: H GED: R1 M1 L1 SVP: 2 DLU: 77
550.687-018 DYE-WEIGHER HELPER (any industry)
Assists DYE WEIGHER (any industry) in mixing dyes
and chemicals for use in dyeing textile yarns and fabrics: Opens steam valve to heat dye solution.
Stirs solution with paddle to dissolve dye. Dumps contents of mixing pails into or turns valve to
transfer dye solution to supply tanks in dyeing department in response to light signal or to
request over speaker system. Moves barrels of dye and chemicals to dye room, using handtruck.
Cleans mixing tanks and work area, using waterhose. Performs other duties as described under
HELPER (any industry) Master Title.
GOE: 06.04.34 STRENGTH: M GED: R2 M1 L1 SVP: 2 DLU: 77
551 FILTERING, STRAINING, AND SEPARATING OCCUPATIONS
This group includes occupations concerned with
separating desirable materials by means of filtering, precipitating, straining, sifting, squeezing,
centrifugal force, or agitating devices.
551.130-010 SUPERVISOR, PROCESSING (chemical)
Supervises and coordinates activities of workers engaged
in conveying, washing, screening, packaging, or storing reclaimed or stockpiled salt: Reads
production schedule to verify type and tonnage of salt to be processed. Inspects conveyor system
and equipment, such as vibrating feeder screens, conveyor junction feeders, and automatic
conveyor scales, for evidence of malfunctioning. Trains workers in operation of equipment.
Coordinates flow of salt to processing stations to prevent production delays. Maintains
production records and prepares reports on department activities. Performs other duties as
described under SUPERVISOR (any industry) Master Title.
GOE: 06.04.01 STRENGTH: L GED: R4 M3 L3 SVP: 7 DLU: 77
551.362-010 PURIFICATION OPERATOR II (chemical) alternate titles: gas-scrubber
operator
Controls gas-scrubbing and related equipment to remove
impurities from gases: Observes temperature, flow, pressure gauges, and liquid-level indicators
and moves controls to effect operating equilibrium in equipment, according to plant procedure
and correlation of instrument readings. Observes gas-scrubbing fluid through sight glasses to
determine process efficiency, indicated by color and flow rate of fluid. Turns valves to maintain
brine in brine scrubber at specified strength and regulate temperature of hot water in scrubber
jacket, according to indicated efficiency of scrubbing fluid. Inspects pumps, motors, valves, and
related equipment and replaces packing in column scrubbers and nitrogen-drying columns at
specified intervals with acid, calcium chloride, or brine. Draws samples of gases and fluids for
laboratory analysis. Maintains log of gauge readings and results of laboratory analyses. Directs
activities of PURIFICATION-OPERATOR HELPER (chemical) 551.465-010.
GOE: 06.02.11 STRENGTH: L GED: R4 M2 L3 SVP: 7 DLU: 77
Tends machines that screen foreign material from ground,
devulcanized scrap rubber: Opens chute on feed conveyors or shovels scrap rubber into hopper of
strainer. Starts machine that forces scrap rubber through strainer screen. Regulates speed of
machine and conveyors to prevent jamming of stock. Discharges strained scrap rubber onto
conveyors for transfer to refining mills, or onto handtrucks for transfer to storage. Feels strainer,
and opens water valves to prevent overheating of machine and scorching of rubber. Observes
rubber for color and appearance and feels strained rubber to ensure that foreign material is
removed. Cleans clogged strainer screens, using scraper and solvent, or replaces clogged and
worn strainer screens, using handtools. Signals drying and milling department workers to
maintain specified flow of scrap rubber through strainers. May dump bags of soapstone in
discharge chute to facilitate movement of stock through screen conveyor. May tend magnetic
device to facilitate removal of metal from rubber. May fill containers with screened rubber to
specified weight and keep record of production.
GOE: 06.02.07 STRENGTH: L GED: R2 M1 L2 SVP: 4 DLU: 77
Controls equipment that absorbs gases and liquids into
water or other solvents to produce chemicals, such as hydrochloric acid or ammonium hydroxide:
Starts pumps, turns valves, and observes flowmeters to control concentration, flow, temperature,
and quantity of coolant, gas, liquid, and absorbing liquor through cooling and absorption towers.
Turns valves to regulate feed of solution produced and rate of steam to purge boilers and
condensers to separate impurities from solution and obtain product of designated strength and
specific gravity. Draws sample and tests specific quality and acidity, using hydrometer and pH
meter, or submits sample to laboratory for analysis. Pumps solution between equipment and
storage tanks or tank cars. Maintains log of instrument readings, test results, and shift production.
May be designated according to solution produced as Ammonium-Hydroxide Operator
(chemical); Aqua-Ammonia Operator (chemical); Hydrochloric-Acid Operator (chemical).
GOE: 06.02.11 STRENGTH: L GED: R3 M2 L2 SVP: 5 DLU: 77
Tends gas scrubbing and related equipment that removes
impurities from gases, as directed by PURIFICATION OPERATOR (chemical) II: Loads brine
saturators and nitrogen-drying columns with lump calcium chloride. Mixes hydrosulfate
solutions used in process, according to proportion chart or oral directions. Observes gauges to
determine gas pressures throughout system, computes and records drops in pressure, and
ascertains from data obtained optimum time to shut down and clean equipment for efficient
operation. Draws samples of acids, brine, and gases from equipment units for laboratory analysis
and determines specific gravity of brine, using hydrometer. Drains liquid from nitrogen driers.
Assists operator in maintaining operating log of gauge and instrument readings.
GOE: 06.02.11 STRENGTH: L GED: R3 M2 L2 SVP: 4 DLU: 77
Tends water plant equipment that scrubs and purifies
gases from smelting furnaces: Starts pumps and fans in scrubber towers and turns valves to
regulate flow of water through nozzles. Pulls lever to open car bottom to unload lime from
hopper cars into storage tanks. Knocks on bottom of hopper with pry bar or uses portable
vibrator to loosen lime remaining in car. Dumps specified number of sacks of sulfate, hydroxide,
and fluoride into mixer machines. Starts conveyors to transport mixed chemicals and lime to
reactor tanks that make reagent solution. Observes control panel, records readings, and calculates
solution temperatures, scrubber fan loads, and flow of treatment solutions, using charts and
graphs. Changes basket screens in reactor tanks, using chain hoist, and cleans screens with water
or steam. Collects samples of treatment solutions and sludge for laboratory analysis. Measures
acidity or alkalinity of clarifier overflow to determine efficiency of impurity recovery, using pH
meter.
GOE: 06.02.11 STRENGTH: L GED: R3 M2 L2 SVP: 4 DLU: 77
Controls rotary-leaf filters and such auxiliary equipment
as centrifuges, pumps, compressors, heat exchangers, and conveyors, to remove process catalyst
from polyethylene products: Starts pumps, centrifuges, and compressors. Observes gauges and
chart recorders; turns valves; and sets automatic control instruments to regulate temperatures,
pressures, flow-rates, and liquid levels within plant specifications, and to transfer materials
between units to ensure efficient removal of catalyst. Directs other workers engaged in tending
pumps, compressors, and centrifuges and in making manual adjustments to equipment to
maintain required process conditions. Moves manual and automatic controls to switch filters into
and out of service for replacement of diatomaceous-earth coating. Records instrument readings
and laboratory test results in operating log. Inspects equipment for malfunctions, wear, and leaks,
reporting need for repairs to maintenance personnel.
GOE: 06.02.11 STRENGTH: L GED: R3 M2 L2 SVP: 5 DLU: 77
Operates hydraulic filter machine to remove foreign
matter from plastics material: Cuts plastics dough into slabs, using knife, or rolls material into
lump and packs it into cylinder. Selects and installs wire and cloth strainers and die heads in
machine, according to type and form of material, using handtools. Adjusts controls of hydraulic
ram, according to pressure gauge reading, and starts machine to force material through strainers.
Cleans strainers, die head, and machine cylinder, using brushes, scrapers, and solvents. Records
amounts and type of dough strained.
GOE: 06.02.13 STRENGTH: M GED: R3 M1 L2 SVP: 5 DLU: 77
551.585-010 FILTER-TANK OPERATOR (chemical)
Tends filter that cleans detergent used in toothpaste:
Starts pumps that transfer toothpaste-detergent slurry to filter tank, and turns valve on vacuum
line to draw liquid from slurry. Turns valves on feed lines to wash residual toothpaste detergent
with specified solvent fluid. Shovels caked detergent into drum and clamps on lid. Weighs drum
and records weight. Moves drum to storage area, using handtruck. Starts pumps to force filtrate
liquid down through filter to stills to recover solvent. May record production data in log.
GOE: 06.04.11 STRENGTH: M GED: R2 M1 L1 SVP: 2 DLU: 77
551.585-014 MERCURY PURIFIER (chemical)
Tends continuous-process equipment that purifies
mercury recovered from electrolytic cells: Turns compressed air and water valves to start flow of
mercury through acid bath and purification towers that remove contaminants from mercury.
Drains purified mercury into storage tank. Refills purifying towers with mercurous nitrate
purifying agent and verifies specific gravity of nitrate, using hydrometer, to ensure efficient
purification. Cleans and flushes towers, using water hose. Records weight of mercury purified
during shift.
GOE: 06.04.11 STRENGTH: M GED: R2 M2 L1 SVP: 4 DLU: 77
551.585-018 PAN HELPER (chemical)
Tends equipment, such as filters, settlers, and thickeners,
to assist in concentrating chemical solution: Turns valves and starts pumps to start flow of
liquids from storage tanks through series of pans. Dumps sacks of chemicals into processing
units. Patrols area to detect leaks and malfunctioning of equipment. Records data, such as
temperature and pressure readings, and monitors gauges and recording charts to ensure safe
operating conditions. Draws sample of product and tests for specific gravity, using hydrometer.
Opens valves to drain and flush salt accumulations from pans and lines. Repacks pumps and
valves and repairs equipment by adjusting or replacing parts, using handtools. Performs other
duties as described under HELPER (any industry) Master Title.
GOE: 06.04.11 STRENGTH: H GED: R3 M1 L2 SVP: 4 DLU: 77
551.585-022 ROTARY-CUTTER OPERATOR (rubber goods)
Tends machine that pulverizes scrap fabric into flock
(powder): Cuts wire from bale of scrap, using wirecutters. Starts machine and dumps and spreads
scrap on conveyor that moves scrap to rotary knives turning within fixed knives that pulverize
scrap. Clamps sack over blower pipe and opens valve to fill sack with flock. Pushes plunger that
forces pneumatic tamper into sack to compress flock. Closes top and sews filled sack, using
needle and twine. Weighs filled sack and records weight on production record and tag.
GOE: 06.04.05 STRENGTH: H GED: R1 M1 L1 SVP: 2 DLU: 77
551.665-010 NAPHTHALENE OPERATOR (steel & rel.)
Tends equipment that separates naphthalene from
chemical drain oil used to wash coke-oven gas or tar distillate: Starts pumps to remove drain oil
from scrubbing tower to collecting tank where naphthalene settles and crystallizes as oil cools.
Opens drain valves or starts pumps to remove oil from pans to storage tanks. Dumps crystals into
centrifuge to remove remaining oil [CENTRIFUGAL-DRIER OPERATOR (chemical)]. Dumps
or shovels crystallized naphthalene into steam-heated tank to melt and further purify crystals.
Draws sample from melting tank for laboratory analysis. Starts pumps to transfer naphthalene
into storage tanks or railroad tank cars. May be designated according to work performed as Drier
Tender, Naphthalene (steel & rel.).
GOE: 06.04.11 STRENGTH: M GED: R2 M1 L1 SVP: 3 DLU: 77
551.666-010 PITCH WORKER (optical goods)
Dumps salvaged pitch into heated filtering kettle that
filters pitch for reuse in blocking lens blanks: Opens valve to drain filtered pitch into cooling
troughs and breaks up solidified pitch with hand tamper. Loads pitch into containers and delivers
to BLOCKING-MACHINE TENDER (optical goods).
GOE: 06.04.19 STRENGTH: L GED: R1 M1 L1 SVP: 2 DLU: 77
Controls agitator tank to wash (mix) benzol, benzene,
toluene, and xylene with sulfuric acid and caustic soda to remove impurities: Turns valves and
starts pumps to charge agitator vessel with specified amount of benzol or derivatives. Drains
measured quantity of acid into vessel and starts agitator to mix contents for specified time. Stops
agitator to allow acid and sludge to settle. Draws sample of washed product for laboratory
colorimetry test to determine need for further washing. Opens valve, using wrench, to drain
excess acid and sludge, adds caustic soda solution to neutralize remaining acid, and measures
alkalinity, using standard titration test. Adds water, agitates mixture to wash out traces of caustic,
and drains off water after contents have settled. Pumps washed benzol or derivatives into storage
tank. Turns valves to admit steam to sludge kettle, solidifying sludge. Lifts kettle cover, using
chain hoist, and removes sludge from kettle. May distill washed benzol in batch still
[BATCH-STILL OPERATOR (chemical) I]. May remove impurities from crude ethylbenzene
by adding lime and water and agitating mixture.
GOE: 06.02.11 STRENGTH: L GED: R3 M2 L3 SVP: 5 DLU: 77
551.685-010 BAND TUMBLER (rubber goods)
Tends tumbler that removes water from rubberbands:
Carries tote box of bands from band-cutting machine and dumps bands into tumbler. Starts
mechanism that rotates bands for specified time to remove moisture from bands. Removes and
carries bands to bundling and boxing machines.
GOE: 06.04.07 STRENGTH: M GED: R1 M1 L1 SVP: 2 DLU: 77
Tends tanks in which crude tetryl explosive or
nitrocellulose is boiled and washed to remove acids and impurities: Admits batch of crude tetryl
slurry to boiling tank. Starts tank agitators and turns valve to admit steam to tank jacket to boil
slurry for specified time. Pumps off water after material has settled. Pumps fresh water through
tank to wash tetryl and flush away impurities. When boiling nitrocellulose, admits acid to tub and
boils contents for specified time, adds neutralizing agent, and repeats process until all
nitrocellulose impurities are removed. May test acidity of solution, using hydrometer or titration
test. When boiling tetryl, is designated Tetryl-Boiling-Tub Operator (chemical).
GOE: 06.04.11 STRENGTH: L GED: R2 M1 L1 SVP: 2 DLU: 77
551.685-018 BONE-COOKING OPERATOR (chemical)
Tends steam-heated vats that extract gelatin from crushed
bone: Turns valve to introduce steam that heats vat filled with crushed bone. Adds water to vat
and dumps in specified amounts of ingredients that hasten extraction of gelatin. Drains vat and
signals other workers to remove bone residue from vat.
GOE: 06.04.19 STRENGTH: L GED: R3 M1 L2 SVP: 3 DLU: 77
551.685-022 CATALYST-RECOVERY OPERATOR (chemical)
Tends filter presses, evaporators, dissolvers, and
precipitators that recover and recondition catalysts used in manufacturing styrene and edible oils:
Starts pump and opens feed and discharge valves to transfer used catalyst from processing
equipment into tank for reconditioning. Observes meters and gauges, and turns valves to
maintain prescribed rate of flow, temperature, and pressure of compressed hydrogen, steam, and
acid in filter or reconditioning tank. Weighs and adds specified amounts of neutralizer and filter
aid. Pumps batch to filter press to change catalyst into cake form for recovery. Turns valves to
regulate feed and temperature of filtrate in evaporating tank for recovery of remaining catalyst.
Removes catalyst residue from tank and filter plates, using shovel and scraper.
GOE: 06.04.11 STRENGTH: H GED: R3 M2 L2 SVP: 3 DLU: 77
Tends centrifugal drier that removes water or other
liquids from slurries: Inserts filter cloth and screen in basket of centrifugal drum. Lowers
bell-shaped cover over outlet in bottom of basket if unit is bottom-discharge type and shovels,
pours, or pumps slurry into basket. Closes lid if unit is top-discharge type. Starts basket
revolving and moves control to regulate speed, according to specifications. Lifts bell, lowers
blade to cut crystallized cake from walls of basket, and pushes centrifuged mass through outlet
into containers or onto conveyor, using paddle. May release trap door, start pumps, or shovel
material from basket to unload drier. May turn steam or fuel valves to heat drier basket or drum
to maintain centrifuged material at specified temperature while drying. When drying and
discharging salt, may be designated Salt Cutter (chemical).
GOE: 06.04.11 STRENGTH: M GED: R3 M1 L1 SVP: 4 DLU: 77
551.685-030 CENTRIFUGE OPERATOR (soap & rel.) alternate titles: salt
operator
Tends centrifuge and auxiliary equipment that washes
and dries slurry solution, formed during making of soap, to recover glycerin-free salt: Tests
sample of slurry from decantation tank for salt content and to determine rate of flow of solution
into centrifuge hopper, using testing instruments, such as hydrometer. Turns valve to run slurry
into centrifuge and presses switch to start machine. Observes gauges to verify rate of flow and
adjusts thermostat to regulate temperature of water in centrifuge. Opens valves to fill drums or
silo with salt flakes. Turns valve to discharge liquid into holding tanks. May dissolve salt in
liquid to make brine and perform specific gravity test, using hydrometer.
GOE: 06.04.19 STRENGTH: L GED: R2 M1 L1 SVP: 2 DLU: 77
551.685-034 CENTRIFUGE OPERATOR (paint & varnish)
Tends centrifuge that removes impurities from varnishes
and lacquers: Positions filter cloth on supply tank of centrifuge. Starts pump to transfer product
from cooling tank, through filter, into containers or supply tank. Starts centrifuge and opens
discharge valve to transfer filtered material from centrifuge into portable tank. Adjusts controls
to regulate flow of material through lines and tanks. May start pumps to transfer liquids from
portable tank to storage tank. Disassembles centrifuge and pump, using handtools and cleans
equipment with solvents. Pumps liquids to filter press if further filtration is specified. May be
designated according to material filtered as Lacquer Filterer (paint & varnish); Varnish Filterer
(paint & varnish) I.
GOE: 06.04.11 STRENGTH: H GED: R2 M1 L1 SVP: 2 DLU: 77
Tends centrifuge to separate grease from liquid glue:
Admits glue liquor from bone-cooking tank into centrifuge machine and starts machine. Drains
grease and glue into separate storage tanks. Disassembles and cleans equipment.
GOE: 06.04.11 STRENGTH: L GED: R2 M1 L1 SVP: 2 DLU: 77
551.685-042 CHILLER OPERATOR (chemical)
Tends chiller and centrifugal drier that crystallize diluted
caustic soda solution and remove liquid from crystallized product: Starts pump to transfer caustic
soda solution and water into dilution tank and determines specific gravity of diluted solution,
using hydrometer. Pumps solution through refrigerating unit and into chiller. Observes
consistency of crystallized slurry flowing from chiller to centrifuge, and turns valves to regulate
feed rate and maintain slurry at specified consistency. Tends centrifugal drier [DRIER
OPERATOR (chemical) III] to remove liquid component of slurry. May turn valve to heat
centrifuge unit if machine is so equipped. Inspects feed and outlet pipes of equipment and flushes
lines, using hose, to prevent clogging.
GOE: 06.04.11 STRENGTH: L GED: R2 M1 L2 SVP: 3 DLU: 77
Tends press that removes water from nitrocellulose used
in manufacturing smokeless powder and pyroxylin for use in plastics: Pours specified amount of
nitrocellulose into bottom cylinder of dehydrating press. Presses button or opens water valve to
force plunger down onto bottom cylinder. Pumps alcohol into lower cylinder and through wet
nitrocellulose to displace water. Removes cakes of water-free nitrocellulose and places them on
handtruck for removal.
GOE: 06.04.11 STRENGTH: M GED: R2 M1 L2 SVP: 2 DLU: 77
551.685-050 DUST-COLLECTOR OPERATOR (soap & rel.)
Tends equipment, such as scrubbing towers and
centrifugal pumps, that recover powder from spray-tower exhaust gas and prevent air pollution:
Starts fan to draw air and accumulated dust from spray tower into scrubbing tower. Starts steam
pump to wet powder, causing it to flow down baffle plates to bottom of tower. Opens valve to
permit recovered powder to flow into storage tank for reuse. Pumps recovered powder from
storage tank to crutcher machine for reprocessing. Records spray-tower exhaust temperatures and
gas pressures on chart.
GOE: 06.04.19 STRENGTH: L GED: R2 M1 L1 SVP: 3 DLU: 77
Tends steam pressure tanks that extract grease from
cracklings: Adjusts temperature and pressure of tank filled with cracklings. Starts pumps to
transfer specified solvent into tank to dissolve cracklings. Opens valve to transfer extracted
grease to still. Takes sample of grease from still and inspects for clarity.
GOE: 06.04.19 STRENGTH: H GED: R2 M1 L1 SVP: 2 DLU: 77
551.685-058 EXTRACTOR OPERATOR (pharmaceut.)
Tends equipment that heats and mixes solvent with
ground leafy plant to separate products, such as chlorophyll: Weighs specified amount of ground
plant matter, such as alfalfa, and dumps it into steam-jacketed tank. Starts pumps to transfer
specified amount of solvent into tank. Starts agitator that mixes solvent with plant matter to
dissolve usable constituents. Observes thermometer and opens valve to regulate admission of
steam to jacket and to maintain tank heat at prescribed temperature. Connects siphon hose and
starts vacuum pump to transfer liquid products to collecting barrel, or to other departments for
further processing or storage. May record production data in log. Opens tank outlet to dump
residue into waste container.
GOE: 06.04.11 STRENGTH: M GED: R2 M2 L2 SVP: 3 DLU: 77
551.685-062 EXTRACTOR OPERATOR, SOLVENT PROCESS (chemical) alternate
titles: solvent-plant operator
Tends solvent extraction equipment that extracts oil from
rice bran, soybeans, and cottonseeds: Observes temperature and steam pressure gauges,
flowmeters and ammeters, and turns valves or handwheels to regulate temperature and flow of
material in equipment within specified limits. Tests samples of material for conformity to plant
standards, using scales, moisture meter, and hydrometer, or by titration. Records indicator
readings and test results. May clean filter plates of extractor.
GOE: 06.04.11 STRENGTH: L GED: R2 M1 L1 SVP: 2 DLU: 77
Tends equipment that extracts salicylic acid from sodium
salicylate solution by precipitation and dries salicylic acid by centrifugal force: Opens valves to
pump sodium salicylate solution and required amount of sulfuric acid into extractor columns that
absorb phenol from solution and cause precipitation of salicylic acid crystals. Opens steam
valves to heat extractors to specified temperature to increase rate of precipitation of salicylic
acid. Pumps off solution of sulfuric acid and phenol, and pumps slurry of salicylic acid through
cooler to centrifugal drier. Tends centrifugal drier that forces out water to dry salicylic acid.
Removes salicylic acid from drier and places acid into containers, using scraper and shovel.
GOE: 06.04.11 STRENGTH: L GED: R2 M1 L1 SVP: 2 DLU: 77
Tends acidulation tanks and auxiliary equipment that
separate undesirable compounds from oils: Turns valves to fill tanks with basic materials and to
admit prescribed amounts of sulfuric acid and caustic. Starts agitator that mixes and separates
ingredients. Starts pumps or opens drain valve to transfer separated material into storage tanks.
May draw sample to test for pH volume, using titration test.
GOE: 06.04.11 STRENGTH: L GED: R3 M1 L2 SVP: 3 DLU: 77
551.685-074 FILTER HELPER (chemical)
Tends filter that removes excess water from activated
carbon slurry, preparatory to drying, for variety of industrial and consumer applications: Moves
lever to transfer carbon slurry from discharge chute onto revolving filter cloth. Raises and lowers
spreader gate to spread carbon uniformly over surface of filter cloth. Dumps bags of processed
carbon onto conveyor leading to shipping or storage area. Monitors vacuum gauge on filter and
observes color of wash water to detect leaks in cloth. Scrapes carbon from surface of cloth, using
wood paddle, to examine for leaks and other damage or wear. Flushes filter cloth with water hose
preparatory to changing cloths.
GOE: 06.04.19 STRENGTH: M GED: R2 M1 L1 SVP: 2 DLU: 77
Tends rotary drum-filters that separate slurries into liquid
and filter cake (insoluble material): Couples flexible hose or pipe to vat, starts pump, and turns
valves to regulate flow of slurry to filter tanks. Adjusts controls to regulate rotation speed of
drums. Turns valve to regulate pressure that forces slurry through filter, separating filter cake
from liquid. Observes discharge to ensure that scrapers are removing filter cake from drum. May
tend thickeners, washing sprays, settlers, or related equipment. May draw sample for laboratory
analysis. May be known according to trade name of machine.
GOE: 06.04.19 STRENGTH: M GED: R2 M1 L1 SVP: 2 DLU: 77
551.685-082 FILTER-PRESS OPERATOR (any industry)
Tends filter plate press that removes impurities or
moisture from slurries and chemical solution: Covers filter plates with cloth, canvas, or paper.
Opens valve to admit liquid ingredients into tank, dumps specified dry ingredients into tank, and
starts agitator to mix ingredients and form slurry. Starts pump to transfer slurry from mixing tank
to filter plate press. Opens pressure valves to force slurry through plates to remove impurities and
moisture. Turns gear wheel to release tension of plates at completion of cycle. When filtering to
obtain liquid product, dislodges solid material from plates and cleans frames, screens, and filters,
using scraper, steam, or compressed airhose. When filtering to obtain solid product, cuts mixture
from frames with knife and loads materials on drying trays. May draw samples for laboratory
analysis. May be designated according to product filtered as Pigment Presser (chemical);
Plate-and-Frame-Filter Operator (any industry); Resin Filterer (paint & varnish); Varnish Filterer
(paint & varnish) II.
GOE: 06.04.11 STRENGTH: H GED: R2 M1 L1 SVP: 3 DLU: 81
Tends kettle that refines grease according to
specifications: Moves lever to admit grease into kettle and opens valve to admit steam into
grease to control boiling. Draws off sample of grease and inspects it for clarity. Starts pump to
add required amounts of acid to kettle and boils grease with acid until grease reaches specified
clarity. Closes steam valve and allows water and impurities to settle to bottom of kettle. Opens
valve to drain off water and impurities. Closes drain valve, opens steam valve, and starts pump to
fill kettle with water. Boils mixture for specified amount of time to wash out acid and remaining
impurities. Opens drain valve to drain off water and impurities. Pumps grease to storage tanks.
GOE: 06.04.19 STRENGTH: L GED: R2 M1 L1 SVP: 3 DLU: 77
551.685-090 LEACHER (paper & pulp)
Tends leach tanks that recover soda ash from black ash:
Opens valve to admit water or weak liquor (soda ash) solution into leach tanks containing black
ash. Starts agitators to stir mixture and dissolve soda ash. Withdraws samples of resultant
solution and tests for concentration of soda ash, using hydrometer. Starts pump to circulate water
or soda ash through leach tanks and into storage tanks until test samples contain specified
concentration of soda ash. Shovels black ash into leach tanks as supply in tank becomes
exhausted. Opens drain to remove insoluble charcoal residue from leach tanks after completion
of recovery process.
GOE: 06.04.11 STRENGTH: L GED: R2 M1 L1 SVP: 3 DLU: 77
551.685-094 LYE TREATER (chemical; soap & rel.)
Tends heated kettle and filter press in which lye is treated
with chemicals to remove undesirable properties in glycerine purification process: Starts pump to
transfer premeasured lye into kettle, starts agitator to mix batch, and turns steam valve to heat
kettle to prescribed temperature. Dumps specified amounts of dry chemicals or pumps liquid
chemicals into kettle to attain product of specified concentration. Inspects batch sample for
clarity and submits sample laboratory for testing. Regulates chemical concentration of batch,
following laboratory report. Pumps batch through filter press to remove materials precipitated
during treatment. Cleans filter press and replaces filter cloths, using handtools. Records kettle
temperature, agitation and treating time, and amount of chemicals used in process.
GOE: 06.04.11 STRENGTH: M GED: R3 M2 L2 SVP: 3 DLU: 77
Tends equipment that recovers and reconditions mercury
used in electrolytic cells: Sweeps, shovels, and dumps mercury-bearing material onto vibrating
screen that separates mercury. Flushes screen with water, using hose, and drains off water into
settling tank, forming sludge. Ladles contaminated mercury and sludge into reclaiming kettle and
turns valves to admit acid and steam to separate foreign matter from mercury. Drains mercury
into flask. May break used cell anodes to salvage porcelain insulators and copper posts, using
hammer. May tend concentrating table to remove mercury residue from scrap material for
recovery. May weigh flasks of recovered mercury for inventory records.
GOE: 06.04.11 STRENGTH: H GED: R2 M1 L1 SVP: 3 DLU: 77
Tends gravity separator to separate nitroglycerin from
spent acids, preparatory to washing, neutralizing, and processing into explosives: Turns petcock
to transfer mixture of spent acids and nitroglycerin from batch nitrator to separator. Turns
petcock to drain acids from nitroglycerin into trough leading to spent-acid storage. Observes
liquid flowing from spigot and moves trough to discharge product into wash tank when color
change indicates nitroglycerin is flowing from separator. Observes tank thermometer to detect
accumulation of heat that could cause decomposition and explosion and turns valves to regulate
heat to prevent explosion or decomposition. May move control to dump tank contents into
water-filled vat if temperature increase indicates explosion may be imminent. May wash and
neutralize nitroglycerin [NITROGLYCERIN NEUTRALIZER (chemical)].
GOE: 06.02.18 STRENGTH: L GED: R3 M1 L1 SVP: 4 DLU: 77
Tends tanks that remove acidity, impurities, and
inadequately processed material from nitrocellulose, used in manufacturing chemical and
explosive products: Pumps nitrocellulose into poacher tubs (tanks) fitted with steam coils or
steampipes. Turns valves to admit water and steam to boil mixture for specified time. Tends
shaker screen and vacuum filter to wash nitrocellulose. Takes samples to laboratory for analysis.
Reads laboratory reports and adjusts blends to meet specifications. Loads blender tubs with
measured amount of different types of nitrocellulose to blend products according to
specifications.
GOE: 06.02.18 STRENGTH: L GED: R3 M1 L2 SVP: 4 DLU: 77
551.685-110 PRECIPITATE WASHER (chemical)
Tends filters and related equipment to wash and filter
catalytic chemicals used in manufacturing styrene and butadiene: Starts pump to force water into
and out of tanks containing precipitate. Titrates sample of wash water to determine when solution
is neutralized. Pumps precipitate into slurry tank and wash water to filter press to separate
contaminants and recover usable products. Transfers containers of filtered solutions to storage or
further processing, using hoist or handtruck.
GOE: 06.04.11 STRENGTH: M GED: R3 M1 L1 SVP: 3 DLU: 77
551.685-114 PRESS OPERATOR (oils & grease)
Tends hydraulic press to extract grease and tallow from
cooked offal, bone, and meat scraps: Opens storage chute gate to start flow of material into press
basket or shovels material from vat into basket, and places steel plate over each layer until basket
is full. Pulls press-head over basket and pulls lever to raise hydraulic ram that presses grease and
tallow from cooked material. Removes crackling cakes and plates from basket and dumps cakes
into conveyor chute.
GOE: 06.04.19 STRENGTH: H GED: R2 M1 L1 SVP: 2 DLU: 77
551.685-118 PRESS OPERATOR II (chemical)
Tends hydraulic press that squeezes liquid from
crystallized chemical products and compacts material to facilitate melting: Shovels crystallized
material into basket of press and positions metal disks in layers throughout material in basket.
Moves levers to raise basket against plunger, squeezing liquid from crystals and compressing
crystals into round, layer-like blocks. Dumps blocks into heated tank and turns steam valves to
melt blocks. Starts pumps to transfer resulting liquid for further processing.
GOE: 06.04.11 STRENGTH: M GED: R2 M1 L1 SVP: 2 DLU: 77
551.685-122 PURIFICATION OPERATOR I (chemical)
Tends equipment that separates hydrocarbons from coal
tar derivatives: Opens valves and starts pump to transfer slurry of hydrocarbons into tank
containing organic solvent. Adjusts steam valves to heat solution to specified temperature. Opens
water valves to cool solution and promote crystallization of hydrocarbon. Pumps solvent into
reclaim tanks, and pumps slurry or hydrocarbon crystals to centrifugal drier. Starts centrifugal
drier to remove remaining solvent from hydrocarbon crystals. Discharges hydrocarbon into
loading hopper. Records production data in log. May be designated according to specific
hydrocarbon processed as Anthracene Operator (chemical). May tend equipment that clarifies
creosol derived from coal tar and be designated Clarification Operator (chemical).
GOE: 06.04.12 STRENGTH: M GED: R3 M2 L2 SVP: 2 DLU: 77
551.685-126 SALT WASHER (chemical)
Tends machine that removes dirt and other foreign
particles from salt prior to storage or processing into commercial products: Starts conveyor that
transfers required quantity of salt into tank of water to prepare saline solution of specified
density. Turns valve to admit cleaning solution into machine. Observes operation to detect
equipment malfunction and to ensure that salt meets standards of cleanliness. Pumps dirty
solution into tank and adds soda ash and lime to cause dirt and foreign matter to precipitate and
settle. Draws sample of clean solution for laboratory analysis. May be designated according to
stage of treatment at which salt is cleaned as Salt Washer, Harvesting Station (chemical); Salt
Washer, Processing Station (chemical).
GOE: 06.04.11 STRENGTH: L GED: R3 M1 L2 SVP: 4 DLU: 77
Tends vibrating or oscillating shaker screens that separate
solids from liquids or sift powdered chemical materials into particles of specified size: Starts
action of screens. Turns valves, starts conveyors, or moves chute vanes to control flow of
materials to screens according to type of material to be screened. Sifts sample of sized product
through laboratory test screens to determine if particle size meets specifications and records
results. Changes screen mesh or cloths as directed and repairs equipment, using handtools.
Cleans screens, using brushes and liquid cleaning agents. May tend related equipment, such as
grinding mills, conveyors, and container-filling units. May examine materials to detect impurities
that could contaminate product or damage screens.
GOE: 06.04.11 STRENGTH: L GED: R2 M1 L1 SVP: 3 DLU: 77
551.685-134 SODA DIALYZER (plastic-synth.)
Tends tanks that recover caustic soda from solutions used
in viscose rayon production: Turns valves to admit impure soda solution to outside section of
tank and water to inside section, effecting absorption of soda into water by osmosis through cloth
membrane separating sections. Turns valves to regulate discharge of resulting pure soda and
intake of impure soda, according to level of solution in tank sections.
GOE: 06.04.13 STRENGTH: L GED: R3 M1 L2 SVP: 4 DLU: 77
Tends open tank that impregnates (steeps) sheets of
woodpulp with caustic soda for use in rayon production: Positions rectangular sheets of pulp
between perforated separator plates, using tongs. Turns valves to admit caustic solution and
steam into tank. Drains tank after specified steeping time. Presses button to activate hydraulic
ram that presses excess caustic from steeped sheets and discharges sheets into shredder.
GOE: 06.04.18 STRENGTH: L GED: R2 M1 L2 SVP: 3 DLU: 77
Tends equipment that cleans and dries ammonium sulfate
crystals: Pushes crystals from drain table into trough. Opens trough gate to discharge crystals
into drier. Starts centrifuge to separate crystals of ammonium sulfate from acid and tar. Washes
remaining impurities from crystals with hot water, using hose. Resumes spinning of centrifuge to
complete drying. May neutralize acid in sulfate crystals with ammonia liquor.
GOE: 06.04.11 STRENGTH: L GED: R2 M1 L1 SVP: 4 DLU: 77
551.685-146 TETRYL-SCREEN OPERATOR (chemical)
Tends shaker screen to remove lumps from dried tetryl
explosive: Transfers trays of dried tetryl to screening area, using handtruck. Starts motor that
activates shaker screen to separate tetryl powder from lumps. Dumps tetryl from trays into feed
hopper of screen. Lines catch boxes with wax paper, and positions boxes beneath discharge spout
of screen to receive screened tetryl powder. Weighs filled boxes and stacks on handtruck for
transfer to storage. Carries containers of tetryl lumps to distillation equipment for reprocessing.
GOE: 06.04.11 STRENGTH: M GED: R2 M1 L2 SVP: 2 DLU: 77
551.685-150 VACUUM-PAN OPERATOR I (chemical)
Tends vacuum pan to wash and dry crystallized tetryl
powder for further processing into explosives: Opens release valve to transfer tetryl from
crystallizer to vacuum pan. Fills pan with warm water and turns suction valve to draw off liquid
and dissolved impurities, leaving powder to settle in felt bag. Shovels and scrapes powder into
tub on handtruck. May scrape powder into trays and place trays in drying chambers.
GOE: 06.04.11 STRENGTH: M GED: R2 M1 L2 SVP: 2 DLU: 77
551.685-154 VACUUM-PAN OPERATOR II (chemical)
Tends equipment that removes excess acid from nitrated
crude tetryl explosive, preparatory to further processing: Opens valve to load vacuum pan with
tetryl slurry. Turns steam jet to draw off excess acid. Shovels and scrapes remaining moist
powder from pan, grids, and filter cloth; and flushes it with water hose down into funnel leading
to washing tubs. May neutralize acid water from subsequent washing operations. May shovel
specified amounts of lime into hopper of lime feeder that neutralizes acid water from subsequent
washing operations.
GOE: 06.04.11 STRENGTH: L GED: R2 M1 L2 SVP: 3 DLU: 77
Tends vats and filter presses to bleach wax used in
candlemaking: Measures and dumps specified chemicals and wax into vats and turns thermostat
knob to prescribed temperature to liquefy wax. Packs granulated charcoal on sides of filter press
and starts pump to circulate molten wax through press. Stops pump after specified time and
drains sample for laboratory analysis. Turns valves or starts pumps to transfer wax from press to
tanks. Records types and quantities of wax used.
GOE: 06.04.11 STRENGTH: H GED: R3 M1 L2 SVP: 3 DLU: 77
Tends centrifugal wringer to remove acid or water
remaining in nitrocellulose after processing: Starts pumps to convey partially processed
nitrocellulose slurry to wringer basket. Moves control to regulate speed of wringer throughout
process, as instructed. Stops wringer after specified time and loosens nitrocellulose from walls,
using scraper or fork, Opens discharge gate and pushes nitrocellulose through aperture into water
immersion bowl to convey slurry to next operation, or hopper to be packed into containers. When
removing water from nitrocellulose, may be designated Poacher-Wringer Operator (chemical).
May take samples of nitrocellulose for laboratory analysis.
GOE: 06.04.11 STRENGTH: M GED: R2 M1 L1 SVP: 2 DLU: 77
551.686-010 BEAD PICKER (rubber reclaim.)
Picks bead wires from ground rubber tires as they pass on
conveyor from grinding machine and drops them in container or on conveyor for removal to
scrap area.
GOE: 06.04.29 STRENGTH: L GED: R1 M1 L1 SVP: 1 DLU: 77
551.686-014 EXTRACTOR LOADER AND UNLOADER (chemical)
Feeds conveyor and loads bones into tank of machine that
extracts grease. Closes tank and seals cover. Rakes bones from tank after extraction process.
Removes burlap filter from bottom of tank and washes and replaces filter.
GOE: 06.04.19 STRENGTH: L GED: R2 M1 L1 SVP: 2 DLU: 77
Rakes cooked offal or tankage from cookers or from
platform near press into hopper of hydraulic press used to extract grease. Cleans working area
and scrubs floors, using cleaning agents and brushes. May rake crackling residue from extractor
tanks onto conveyor and start pump to transfer solvent to extractor tanks to dissolve crackling
and be designated Extractor Puller (oils & grease).
GOE: 06.04.19 STRENGTH: M GED: R1 M1 L1 SVP: 2 DLU: 77
551.687-010 BONE PICKER (chemical)
Picks bones from offal as it passes on conveyor belt and
tosses bones onto conveyor.
GOE: 06.04.34 STRENGTH: L GED: R1 M1 L1 SVP: 1 DLU: 77
551.687-014 BRINE MAKER II (chemical)
Weighs and adds specified quantities of chemicals to
brine to purify solution preparatory to further treatment and refining of salt: Weighs chemicals,
such as soda ash and lime, using scale, and pours them into brine tank. Removes residue from
tank, using water hose and pumps. Dissolves specified tonnage of unprocessed salt in water to
produce brine.
GOE: 06.04.11 STRENGTH: L GED: R2 M1 L1 SVP: 3 DLU: 77
Screens dynamite sweepings and broken cartridge shells
to reclaim usable dynamite: Shovels floor sweepings and broken shells from powder buggy onto
brass screen, using wooden shovel. Picks out foreign matter, such as paper and wood splinters,
sifts explosive material from broken or malformed cartridges, and discards debris. Rubs
dynamite through screen, using gloved hand. Shovels or dumps reclaimed dynamite into powder
buggy for reprocessing.
GOE: 06.04.34 STRENGTH: H GED: R2 M1 L1 SVP: 2 DLU: 77
551.687-022 LABORER, COOK HOUSE (chemical)
Performs any combination of following duties to process
stock (animal skins, splits, fleshings, and trimmings) for use in making glue or gelatin: Moves
stock to kettle upon signal from COOK (chemical), using handtruck, and dumps stock into kettle.
Turns valve to fill kettle with water to submerge stock. Skims grease from surface of water in
kettle, using skimmer. Cleans kettle, using shovel, brushes, and water. Packs bottom of kettle
with excelsior used to filter broth drained from kettle.
GOE: 06.04.34 STRENGTH: H GED: R1 M1 L1 SVP: 2 DLU: 77
Assists NAPHTHALENE OPERATOR (steel & rel.) in
separating naphthalene from chemical drain oil used to wash coke-oven gas or tar distillants:
Shovels crystallized naphthalene from cooling pans into wheelbarrow. Breaks up large pieces of
naphthalene, and transports material to centrifugal drier. Performs other duties as described under
HELPER (any industry) Master Title.
GOE: 06.04.34 STRENGTH: H GED: R1 M1 L1 SVP: 2 DLU: 77
551.687-030 SIFTER (pharmaceut.)
Sifts residue from tablet processing machines to salvage
usable tablets and powder for reprocessing: Selects sieve according to size tablet being
processed. Dumps residue from pail into sieve and picks out foreign matter and usable tablets.
Places tablets in container and discards foreign matter. Shakes sieve to sift powder onto paper
and pours powder into container. Weighs residue and records weight and identifying information
on worksheet.
GOE: 06.04.34 STRENGTH: L GED: R2 M1 L1 SVP: 2 DLU: 77
Guides sheets of woodpulp, used in rayon production, as
they are lowered mechanically into steeping presses or vats of caustic soda and pressed to
remove excess alkali. May weigh specified number of sheets, using scales. May convey
woodpulp to steeping machine, using handtruck.
GOE: 06.04.19 STRENGTH: M GED: R1 M1 L1 SVP: 2 DLU: 77
552 DISTILLING OCCUPATIONS
This group includes occupations concerned with heating a
mixture to vaporize the more volatile parts and separate them from the less volatile, and then
cooling and condensing the vapor to produce a nearly pure or refined substance.
Supervises and coordinates activities of workers engaged
in treating and distilling caustic cresylate to produce variety of cresol products: Observes
recording-instrument charts, flowmeters, and gauges to verify process conditions. Correlates
instrument readings and test results to diagnose malfunctions in process. Trains workers in
procedures for correcting machine malfunctions and in specifications for process changes.
Inspects equipment for mechanical defects and malfunctions, such as leaks and excessive wear.
Performs other duties as described under SUPERVISOR (any industry) Master Title.
GOE: 06.02.11 STRENGTH: L GED: R4 M3 L3 SVP: 8 DLU: 77
Controls caustic-wash purification units to remove
chemical inhibitors from butadiene and styrene monomers to prevent spontaneous
polymerization during storage and transit: Starts pumps and injectors to recycle caustic solution
through wash tank and mix liquid monomer with caustic solution. Reads gauges and laboratory
analysis reports and adjusts controls to regulate mixing and separating of purified monomer and
caustic solution containing inhibitor, according to plant standard. Drains caustic solution from
wash tank and piping system and pumps cleaning solution through system to remove impurities.
GOE: 06.02.11 STRENGTH: L GED: R3 M2 L2 SVP: 5 DLU: 77
552.362-014 OXYGEN-PLANT OPERATOR (chemical)
Controls fractionating columns, compressors, purifying
towers, heat exchangers, and related equipment to extract nitrogen and oxygen from air for
industrial and therapeutic use: Turns valves in specified sequence to control flow of air through
series of units that compress and liquefy it, remove carbon dioxide and impurities, and separate
resulting product into nitrogen and oxygen. Observes pressure, temperature, level, and flow
gauges to ensure standard operation. Tests oxygen for purity and moisture content at various
stages of process, using burette and moisture meter. Adjusts equipment according to test results
and knowledge of process and equipment. Opens valves to transfer liquid or gaseous oxygen
through heat exchanger to cool air, to heat and vaporize liquid oxygen, and to store gaseous or
liquid oxygen in storage tanks at specified temperature and pressure. Turns valves to transfer
compressed oxygen to storage cylinders. Cleans and repairs equipment, such as replacing
defective valves and removing carbon from valves, using handtools and airhose. Records gauge
readings and test results. May open valves to convey hot nitrogen through alternate batteries of
driers to remove moisture. May clean and refill drier with activated alumina. May operate
equipment to extract, compress, and liquefy hydrogen from natural gas and be designated
Liquid-Hydrogen-Plant Operator (chemical).
GOE: 06.02.11 STRENGTH: L GED: R3 M3 L3 SVP: 4 DLU: 78
552.362-018 RECOVERY OPERATOR (paper & pulp)
Controls evaporators, furnaces, and dissolving tanks to
recover sodium compounds from chemicals spent in paper manufacturing processes: Patrols area
around recovery units, observing recording devices and indicators on panelboards, flow of
chemicals through units, and color of flame in furnaces to detect variations in pressure and
temperature of evaporators, determine solid content of evaporated liquor, and detect incomplete
burning of liquor in furnace. Turns rheostats to regulate pressure and temperature of evaporators,
temperature and rate that liquor is sprayed into furnaces, and rate that molten sodium compounds
are transferred from furnace to dissolving tanks. Tests solution at various stages of processing for
specific gravity and titration, using testing devices. Adjusts and resets control instrument
proportional bands on control board. Records meter readings at specified intervals on progress
chart.
GOE: 06.02.11 STRENGTH: L GED: R4 M3 L3 SVP: 5 DLU: 77
552.362-022 STILL OPERATOR, BATCH OR CONTINUOUS (chemical) alternate
titles: purification operator; rectifying operator
Controls batch stills or continuous stills and auxiliary
equipment from instrumented control board or other control station to separate and condense
liquids having close volatilization points, maintaining process control according to instrument
readings, test results, and knowledge of equipment and procedure: Reads charge sheet to
determine types and quantities of materials to be distilled, specified sequence of operations, and
control settings for attainment of prescribed fractionation. Starts pumps and turns valves to admit
volatile liquids into still. Observes pressure and temperature gauges and moves controls to
specified settings to attain volatilization rate consistent with efficient and safe operation,
according to knowledge of process and equipment. Moves controls to maintain specified
operating equilibrium in condensers and still auxiliaries, and to set reflux rate for recycling
maximum portion of distillate through equipment consistent with efficient operation. Draws
sample of product for laboratory analysis, or performs standard refractometric, boiling-range,
colorimetric, titration, or specific quantity analyses to determine effectiveness of distillation.
Turns valves and starts pumps to route distilled fractions to receiving tanks according to
correlation of data from laboratory tests or observation of product color. Records data computed
from instrument readings and test results, such as weight of product and yield. May direct
activities of other workers who assist in operation of stills and auxiliary equipment. May be
designated according to distilled product as Alcohol-Still Operator (chemical). May be
designated according to type of still operated as Batch-Still Operator (chemical) II;
Continuous-Still Operator (chemical).
GOE: 06.02.11 STRENGTH: L GED: R4 M3 L3 SVP: 6 DLU: 77
Controls equipment, such as washers, rectifiers,
condensers, and mixing tanks arranged in series to recover pyridine sulfate from tar oils: Prepares
solutions of diluted sulfuric acid and sodium carbonate to specified concentration by adding
water. Pumps solutions into system to dissolve pyridine and neutralize acids. Starts pumps to
circulate batch through system, observing gauges and other instruments. Removes tarry
compounds dissolved in pyridine sulfate solution by rectifying (boiling) solution with steam.
Samples products for analysis, and interprets results and makes adjustments to control quantity
and quality of product according to laboratory report. Inspects equipment, and steams out lines,
changes charts, lubricates equipment, and makes minor repairs and adjustments.
GOE: 06.02.11 STRENGTH: M GED: R3 M3 L3 SVP: 6 DLU: 77
Operates batch or continuous still to separate intermediate
products or impurities from coal tar compounds: Charges still and starts flow of coal tar
compound through still units. Turns control valves and observes recording instruments and
gauges to attain temperatures, material flow rate, pressure, or vacuum specified for distillation of
designated product. May compute variances between laboratory analysis and product
specifications, using prescribed formula to determine temperature and flow-rate adjustments.
May observe gauges or use measuring rod to verify quantities of chemical materials in feed and
hold tanks of still unit. May direct activities of helpers. May be designated according to product
distilled as Naphthalene-Still Operator (chemical); Tar-Heater Operator (chemical).
GOE: 06.02.18 STRENGTH: M GED: R4 M3 L3 SVP: 6 DLU: 77
552.682-010 DISTILLER I (chemical) alternate titles: refining-still operator; still
tender
Operates stills to refine crude wood turpentine obtained
by destructive distillation and steam distillation process: Regulates flow of crude wood
turpentine into stills and regulates steam used to heat stills. Observes progress of stills and at
specified time during process diverts distilled products (wood turpentine, pine oils, resin oils)
into tanks.
GOE: 06.04.11 STRENGTH: L GED: R3 M2 L2 SVP: 5 DLU: 77
552.682-014 DISTILLER II (chemical)
Controls continuous still equipment to distill pine
oleoresin into oil of turpentine and rosin: Turns valves to transfer heated oleoresin from melting
vats into cleaning, filtering, and washing tanks to clean, filter, and wash trash, foreign matter,
and other impurities from resin preparatory to distillation. Pours specified amounts of oxalic acid
into tanks to facilitate cleansing process, using graduated cylinder. Drains impurities from wash
tanks and starts pump that forces resin into still. Turns valve to circulate water through steam
jackets. Observes temperature gauge and turns valve to regulate heat to specified temperature to
condense turpentine vapors. Turns valve to drain rosin from still. Observes sample of distillate
for clarity and separation of turpentine from oleoresin to determine completion of distillation.
Occasionally replaces filters in tank and cleans tank as necessary.
GOE: 06.02.11 STRENGTH: L GED: R3 M2 L2 SVP: 4 DLU: 77
Operates digesters in steam distillation process to extract
crude turpentine from wood: Regulates flow of steam through digesters. Gives directions to
EXTRACTOR-OPERATOR HELPER (chemical) engaged in filling digesters with wood chips
and dumping spent wood from digester.
GOE: 06.04.18 STRENGTH: L GED: R3 M2 L2 SVP: 5 DLU: 77
Tends equipment to recover acetone, used in acetate
rayon manufacture, from vapor produced by dry spinning (forming) of rayon filaments: Turns
valves to admit vaporized acetone from spinning units to recovery system and to maintain
cooling coils in condenser at specified temperature for efficient acetone recovery. May pump
recovered acetone to storage tanks or recirculate it to mixing machines in which cellulose acetate
flakes are dissolved to form spinning solution.
GOE: 06.04.11 STRENGTH: L GED: R2 M1 L2 SVP: 3 DLU: 77
552.685-014 BATCH-STILL OPERATOR I (chemical) alternate titles: distiller
Tends batch stills to separate, by distillation, liquids
having divergent volatilization temperatures: Pours specified types and quantities of materials
into still. Observes thermostat and sets controls on instrument panel to maintain specified
volatilization temperatures throughout distillation cycle and to control condensation of
components. Draws samples of distilled liquids for laboratory analysis or performs refractometric
or other tests, using standard procedure and equipment. Observes color of distillate to determine
when distillate is completed. Records operating data, such as weight, yield of products, gauge
readings, and number of batches distilled. May tend continuous-flow vacuum still. May be
designated according to product distilled or formed as Ammonia-Still Operator (chemical);
Crystallizer Operator (chemical) II; Degreasing-Solution Reclaimer (chemical); Glycerin
Operator (soap & rel.).
GOE: 06.04.11 STRENGTH: L GED: R3 M2 L2 SVP: 4 DLU: 77
552.685-018 BATH-MIX OPERATOR (plastic-synth.)
Tends still that purifies solvents used in processing
plastics: Screws drain valves into chemical drums and lifts drum onto rack, using hoist. Dumps
contaminated solvents into still, and turns steam valve to vaporize impurities and reclaim
solvents. Cleans empty drums, using brush and solvent and moves them to storage on handtruck.
GOE: 06.04.11 STRENGTH: H GED: R2 M1 L1 SVP: 2 DLU: 77
552.685-022 RETORT-CONDENSER ATTENDANT (chemical)
Tends retort vapor condensers used in destructive
distillation of wood: Starts pump that discharges contents of receiving tanks into settling tanks.
Caulks doors of retort if leak occurs. Turns valves on gasline or oil line to supply fuel to burners
or to control temperature in retort.
GOE: 06.04.19 STRENGTH: L GED: R3 M2 L2 SVP: 3 DLU: 77
552.685-026 STILL TENDER (any industry)
Tends flash-type still that reclaims or separates liquids,
such as solvents, through volatilization and condensation: Starts pump to draw liquid into tank
and allows impurities to settle. Turns valve to transfer liquids into still. Observes temperature
gauge and adjusts valve to heat liquid to specified temperature and vaporize liquid in tank. Turns
valve to circulate water through tank jackets to condense vapors. Observes distillate for clarity,
through pipeline viewer. May be designated according to liquid recovered as Solvent Recoverer
(plastic-synth.).
GOE: 06.04.19 STRENGTH: L GED: R3 M2 L2 SVP: 3 DLU: 77
552.685-030 STILL-OPERATOR HELPER (chemical)
Tends distillation units and auxiliary equipment to
separate volatile chemical compounds into specified components, performing combination of
following tasks under direction of equipment operator: Turns valves and starts pumps as directed.
Records temperature, pressure, and flow indicator readings. Measures liquid in tanks, using
gauging rod or tape, and draws samples for laboratory analysis. Inspects pipes for leaks. Moves
controls to start semiautomatic still auxiliaries, such as heat exchangers, stripping columns,
vaporizers, flash tanks, and condensers, and to maintain specified operating equilibrium in
equipment as directed. Assists STILL OPERATOR, BATCH OR CONTINUOUS (chemical) in
transferring equipment and materials. Cleans equipment, using hose, brushes, and scrapers. May
tend equipment to produce gas leak detectant odorants and be designated Second Operator
(chemical).
GOE: 06.04.11 STRENGTH: H GED: R3 M2 L2 SVP: 3 DLU: 77
552.686-010 EXTRACTOR-OPERATOR HELPER (chemical)
Feeds wood chips into digesters used in steam distillation
process for extracting crude turpentine: Seals cover to opening at bottom of digester. Starts
conveyor to fill digester with wood chips through charging hole at top. Seals cover to charging
hole. Removes cover on hole at top of digester to dump spent wood from digester at end of
extraction process.
GOE: 06.04.18 STRENGTH: M GED: R2 M1 L1 SVP: 2 DLU: 77
Starts pump to transfer coal tar distillates to storage or
processing tanks. Dips measuring rod into tanks to verify quantities of distillates in tanks. Moves
neutralizing chemicals to work area preparatory to charging of still, using handtruck.
GOE: 06.04.40 STRENGTH: M GED: R2 M1 L1 SVP: 2 DLU: 77
553 HEATING, BAKING, DRYING, SEASONING, MELTING, AND
HEAT-TREATING OCCUPATIONS
This group includes occupations concerned with
removing moisture from material by exposure to heat, air, vacuum, or desiccants; exposing
material to heat to facilitate its processing by others, liquefy solids or gases, change chemical
composition, effect texture and consistency, or remove solvents or other undesirable
components.
Supervises and coordinates activities of workers engaged
in extracting and refining grease produced by cooking glue stock and in converting tankage to
fertilizer: Estimates weight and type of tankage or grease in process and specifies amount of acid
to be used. Examines refined grease to ensure specified level of clarity. Directs blending of
grease according to formula and loading of grease into tank cars. Records amounts of grease
refined, blended and shipped, amounts of acid used, and moisture content of each batch of
fertilizer. Trains workers in operation of cookers. Performs other duties as described under
SUPERVISOR (any industry) Master Title.
GOE: 06.02.01 STRENGTH: L GED: R4 M3 L3 SVP: 7 DLU: 77
553.362-010 BELT-PRESS OPERATOR I (rubber goods)
Sets up and operates single- or double-deck platen curing
press to cure transmission or conveyor belting: Gives directions to workers engaged in setting up
press according to specified width of belt, pressure, temperature, and curing time. Positions guide
stops in press to accommodate height of belt to be cured. Inspects sections of press for
conformity to specifications and verifies temperature and time settings. Observes machine
operation to detect malfunction. Signals OVERHEAD CRANE OPERATOR (any industry)
921.663-010 to lift and position belt rolls in work area.
GOE: 06.02.13 STRENGTH: H GED: R3 M2 L2 SVP: 5 DLU: 77
Sets up and operates autoclaves and auxiliary equipment
to cure and bond metallic and nonmetallic aircraft parts and assemblies according to
specifications: Reads and interprets shop orders and authorization documents to determine
bonding process specifications. Selects parts and assemblies for simultaneous bonding, based on
similarity of processing requirements and autoclave capacity. Arranges jigs and fixtures
containing parts and assemblies on bonding racks and positions racks in autoclave, manually or
using equipment, such as hoist, forklift, or tow. Inspects general condition of parts and
assemblies, examines positioning of parts and assemblies in jigs and fixtures, and verifies that
vacuum bag installation conforms to specifications prior to bonding. Connects thermocouples
and vacuum lines to fittings on jigs and fixtures and inside autoclave. Adjusts manual controls or
enters commands in computerized control panel to regulate and activate autoclave power supply,
cooling system, vacuum, heat, and pressure gauges and recorders, and to close interlocking
autoclave doors. Monitors instruments, switches, and recorders and listens for warning signals
during autoclave operation to ensure conformance to specifications, and modifies or aborts
process as required. Maintains manual or computerized autoclave processing records. Operates
curing ovens and presses with heated platens [METAL-BONDING PRESS OPERATOR
(aircraft mfg.) 553.382-026] to cure and bond parts. Suggests methods or procedures for
improved operations to supervision or liaison personnel. Discusses loading, unloading, and
operation of autoclaves and auxiliary equipment with other operators and workers to ensure
safety of individuals working in and around high-pressure autoclaves. May calibrate autoclave
system components.
GOE: 06.02.18 STRENGTH: M GED: R4 M3 L3 SVP: 6 DLU: 88
553.364-010 SAMPLE TESTER (chemical)
Tests samples of phosphoric acid, according to prescribed
standards, to determine chemical and physical characteristics of acid for purposes of quality
control, process control, and conformity to specifications: Mixes specified amounts of processed
acid with control chemicals in flask, shakes flask to mix them, pours solution into container of
colorimeter to determine strength of acid, and records results of test. Determines specific gravity
of acid in slurry, using water vacuum equipment and hydrometer, and records results of test.
Determines specific gravity of final product, using hydrometer, and records results of reading.
Notifies operators of changes in their processes that affect quality of final product. Bottles and
labels samples taken at various stages of processing for laboratory analysis. Cleans laboratory
and equipment after each test run and at end of shift.
GOE: 02.04.01 STRENGTH: L GED: R3 M2 L3 SVP: 5 DLU: 77
553.382-010 AUTOCLAVE OPERATOR I (chemical)
Controls autoclave (high-pressure tank) to process liquid,
solid, and gaseous ingredients into chemical products according to specifications: Reads
production schedule to determine product, ingredients, temperature, pressure, and duration of
process. Turns valves to load liquid ingredients into tank. Weighs out and dumps solid
ingredients and catalyst into equipment, and turns steam and coolant valves to heat mixture to
specified temperature. Turns valves to displace accumulated gases to avoid explosion. Closes
vent to seal autoclave. Sets dials to control pressure and flow of gaseous material through
mixture. Opens vent to admit product into load tank. Connects drain line from load tank to filter
press, using handtools, and starts pumps to force product through press to separate catalyst.
Drains product into drum and starts pumps to transfer catalyst to load tank for reuse. May test
samples of materials produced, using refractometer or other standard test equipment, to ensure
attainment of specified product.
GOE: 06.02.11 STRENGTH: H GED: R3 M2 L2 SVP: 5 DLU: 77
553.382-014 BOILER (soap & rel.)
Controls kettles to boil soap ingredients, such as lye,
resin, palm oil, and tallow, to specified consistency: Opens valves to fill kettle with ingredients
in specified amounts, and weighs and dumps ingredients in kettle, using scale. Opens steam
valve to heat kettle to specified temperature. Observes boiling rate, reads temperature gauges,
and turns valves to maintain temperature within critical limits. Boils ingredient for specified time
and draws and tests sample for consistency, specific gravity, and chemical content, using
laboratory equipment, such as hydrometer. Starts pumps and opens valves to transfer mixture to
storage tanks. May stir ingredients with paddle.
GOE: 06.02.18 STRENGTH: L GED: R4 M3 L3 SVP: 7 DLU: 77
Controls single-stage or multiple-effect evaporators to
concentrate chemical solutions to specified density by evaporation: Starts pumps and turns
valves to admit liquid solution, steam, and cooling water into system. Observes temperature,
pressure, and vacuum gauge readings and adjusts pumps to conform to specifications. Turns feed
valves to regulate flow of solution through system and to obtain specified concentration. Tests
solution pumped from last effect, using hydrometer, to ascertain that solution is concentrated to
specified density. Observes manometers and looks through sight glass to ensure that steam
vapors are not carried to next effect with solution. Tests steam condensate with reagents to detect
contaminated solution. May control equipment from instrumented control board. May tend
equipment, such as preheaters, thickeners, settlers, and filters, that prepare solution for
evaporation. May clean evaporator shell and tube nest with chemical to remove scale. May
operate multiple-effect unit as one or more single evaporators.
GOE: 06.02.11 STRENGTH: L GED: R4 M3 L3 SVP: 6 DLU: 77
Controls equipment to melt, cook, and mix ingredients,
such as gums, oils, turpentine, and naphtha, for use in manufacture of varnishes: Weighs gum
and dumps it into gum pot or agitator tank over burner. Pours in oil, as gum becomes liquid, and
adjusts burner controls to regulate heat. Controls burners to cook mixture for specified time.
Starts pump to transfer varnish base and thinner into reducing tank. Starts agitator to mix base
and thinner for specified time. Fills test tube with varnish and compares viscosity with standard
sample, or delivers test tube to laboratory for test. Pumps varnish through filter press to remove
sediment from varnish.
GOE: 06.02.11 STRENGTH: M GED: R3 M2 L2 SVP: 5 DLU: 77
553.382-026 METAL-BONDING PRESS OPERATOR (aircraft mfg.) alternate titles:
platen operator, metal bond
Sets up and operates hydraulic press equipped with
heated platens to bond metal aircraft and space vehicle parts and assemblies: Reads blueprints
and shop orders to determine areas of parts to be joined, amount of bonding agent to apply, and
temperature and pressure required. Examines parts or assemblies for surface defects and
positions parts on machine bed, using jigs or fixtures. Applies adhesives to surfaces to be
bonded. Installs thermocouple leads to machine, using handtools. Starts machine and adjusts
controls to regulate pressure, heat, and curing time. May assemble parts prior to aligning them in
machine. May operate autoclaves and ovens to cure and bond parts and assemblies
[AUTOCLAVE OPERATOR (aircraft mfg.) 553.362-014].
GOE: 06.02.02 STRENGTH: M GED: R3 M2 L2 SVP: 5 DLU: 87
553.385-014 PRIMER EXPEDITOR AND DRIER (chemical)
Tends vacuum tank that dries priming mixture, and dries
and stores loaded cartridge primers and primed rim-fire cartridge cases: Transfers trays or boards
filled with explosive primers or cases from loading room to steam-heated dryhouse, using
shockproof cart. Places filled trays in numbered racks or bins. Reads gauges and turns valves to
control temperature in dryhouse. Collects primers and cases from storage to fill requisitions and
keeps perpetual inventory. Loads primers on screen trays of vacuum tank and starts vacuum
pump, steam heat, and fans that force-dry priming mixture when requisitions do not permit
sufficient time for air drying. May deliver primers and cases to production departments and
record date, lot number, and grade.
GOE: 06.04.11 STRENGTH: L GED: R2 M1 L2 SVP: 3 DLU: 77
553.462-010 FLASH-DRIER OPERATOR (chemical)
Controls flash-drier furnace and auxiliary equipment to
remove water from activated carbon slurry, for use in industrial and consumer applications: Tests
specific gravity of carbon slurry in agitator tank, using hydrometer, and draws sample for acidity
testing by WASH OPERATOR (chemical). Admits water and dumps prescribed amount of
caustic into slurry tank to bring density and acidity readings to prescribed standard. Turns valve
to heat slurry to specified temperature and starts pumps to transfer slurry to vacuum drum filter.
Adjusts gate leading to paddle mixer to regulate flow of slurry to furnace. Sets automatic controls
to maintain furnace temperature at plant standard. Moves switches and turns valves to regulate
furnace blowers and cyclone filters that control flow and discharge dried carbon. Directs
activities of workers engaged in tending filter and carbon-bagging machines. Weighs carbon
samples taken from furnace discharge spouts and computes percentage of moisture removed,
using standard formula. Keeps log of gauge readings and test results. Verifies setup of scraper
blade on filter drum for efficient operation. May turn fuel valves to regulate furnace conditions in
manually controlled units, according to specifications.
GOE: 06.02.18 STRENGTH: M GED: R3 M2 L2 SVP: 4 DLU: 77
553.482-010 AGER OPERATOR (plastic-synth.)
Controls continuous process equipment to age alkali
cellulose for use in cellophane manufacture: Takes wet and dry-bulb temperature readings in air
ducts through which cellulose will pass on conveyor and calculates humidity in ducts, using
graphs. Reads instruction tables to determine setting of conveyor screws and belts under existing
humidity conditions. Turns screws to adjust conveyor speed to regulate length of aging cycle,
and to set humidistat that maintains specified humidity in ducts. Records operating data.
GOE: 06.02.13 STRENGTH: L GED: R3 M2 L2 SVP: 5 DLU: 77
Performs variety of duties to assist
CALCINE-FURNACE TENDER (paint & varnish) in baking pigments to bring out color:
Scoops dry blend of pigments from drums into clay saggers (pigment containers) and stacks
saggers on bed of kiln. Positions kiln bed on hydraulic lift, using forklift. Moves controls of
hydraulic lift to raise kiln bed into overhead kiln and secures bed in kiln. Removes bed from kiln
on signal from CALCINE-FURNACE TENDER (paint & varnish) and empties saggers of
calcined pigments into drum. Weighs and tags drum and moves it to storage area, using
handtruck. May load saggers of dry blend onto revolving track of circular kiln for
continuous-calcination process. Performs other duties as described under HELPER (any
industry) Master Title.
GOE: 06.04.11 STRENGTH: H GED: R1 M1 L1 SVP: 2 DLU: 77
553.582-010 DRIER OPERATOR II (chemical) alternate titles: tunnel-drier
operator
Operates atmospheric tunnel driers that heat liquids or
slurries to remove water or other volatile liquids: Moves controls to regulate preheaters, fans, and
conveyor belts or other material feeding mechanisms to maintain continuous operation. Turns
steam valves and sets automatic temperature controls to attain specified drying temperature.
Observes temperature charts and conveyors to correct equipment malfunctions and jamming of
feed or discharge conveyors. Examines and feels materials for moisture content or obtains
sample for laboratory moisture analysis, and readjusts equipment controls to attain specified
product. Stops drier units in sequence as material feed is exhausted. Records data, such as type
and quantity of material dried and drying time. May tend continuous pan driers that
automatically transfer materials through drier in pans on conveyor chains, and dumps dried
contents after drying. May tend or feed auxiliary equipment, such as grinding mills and baling
machines that process dried product. May be designated according to type of drier as
Continuous-Conveyor-Screen Drier (chemical).
GOE: 06.02.11 STRENGTH: L GED: R3 M2 L2 SVP: 4 DLU: 77
553.582-014 POT FIRER (chemical)
Controls heated pots to dehydrate concentrated caustic
solution, according to operating procedures: Starts pumps and opens valves to admit specified
quantity of caustic solution to pots. Reads pressure and flowmeters and charts, and turns valves
to control flow of caustic liquor to prevent overflow in pots. Observes boiling rate and
temperature recorders and turns valves or sets thermostat to maintain pot temperature within
specified limits. Records flow, pressure, and temperature readings in operating log. May perform
chemical tests on caustic and add reagents to facilitate production of standard product. May tend
machine that flakes caustic soda [FLAKER OPERATOR (chemical; smelt. & refin.)]. May fire
oil or gas furnaces under direction of STATIONARY ENGINEER (any industry).
GOE: 06.02.11 STRENGTH: L GED: R3 M2 L2 SVP: 5 DLU: 77
553.585-010 DEBUBBLIZER (plastic-synth.)
Tends high-pressure heating equipment that removes
internal solvent bubbles from nitrocellulose rod stock: Loads precut rods into cylinder chamber.
Turns valves to fill cylinder with hot water and admit steam into cylinder jacket. Observes
gauges and turns valves to regulate temperature and pressure. Turns valves to drain water, reduce
pressure, and refill cylinder with coolant to set softened and compressed stock. Drains coolant
from cylinder and removes debubblized rods from cylinder chamber. Records number and type
of rods processed.
GOE: 06.04.13 STRENGTH: M GED: R2 M1 L1 SVP: 3 DLU: 77
553.585-014 DRY-HOUSE ATTENDANT (chemical)
Tends drying room in which pyrotechnics (fireworks) are
cured, dried, or stored: Stores trays of pyrotechnics on racks according to date of processing.
Observes room thermometers and moves controls of blower heater to keep drying room
temperature within prescribed limits. Issues stored pyrotechnics to workers according to date of
processing or removes materials at expiration of specified period and stores them in metal
containers for further processing.
GOE: 06.04.11 STRENGTH: M GED: R2 M1 L1 SVP: 3 DLU: 77
Tends equipment in steam-heated drying room that dries
and hardens bar soap: Pushes racks of soap into and out of room according to prescribed
schedule. Turns and adjusts steam valves to heat and maintain room at specified temperature.
Starts electric dolly that moves soap racks through drying chamber. Records number of racks
processed.
GOE: 06.04.19 STRENGTH: M GED: R1 M1 L1 SVP: 2 DLU: 77
Tends steam heaters or presses that shape and cure rubber
floor mats: Positions sheets of precut calendered rubber on molds. Turns valve to activate
vacuum fixtures that draw and hold rubber against contours of molds. Examines molds to
ascertain that rubber sheet covers mold and smooths out wrinkles. Removes excess rubber from
mold, using knife or roller. Pushes switch to close press and move heater carriage into heater.
Turns valve to admit steam and sets timer for specified curing time. Strips cured mats from mold.
Examines mats for defects, such as discoloration, misforming, blisters, and cracks. Marks
defective mats for repair and places them on skids.
GOE: 06.04.13 STRENGTH: M GED: R2 M1 L2 SVP: 3 DLU: 77
553.585-026 TUMBLER OPERATOR (rubber goods)
Tends tumblers that dry, treat, and screen latex
prophylactics preparatory to testing: Weighs and keeps each batch separate. Dumps batch into
drying, treating, and screening tumblers, following specified sequence. Adds treating agents,
such as oil emulsion, cornmeal, and lycopodium, to treating tumbler for finishing. Dumps
finished batch into container and identifies batch with date, time, type, and number, and sets
batch aside for testing. Records temperature and humidity gauge readings, treating agents used,
and number of batches tumbled.
GOE: 06.04.13 STRENGTH: M GED: R2 M1 L1 SVP: 2 DLU: 77
553.665-010 BELT-PRESS OPERATOR II (rubber goods)
Tends section of single- or double-deck platen press to
cure rubber transmission and conveyor belting under direction of BELT-PRESS OPERATOR
(rubber goods) I 553.362-010, working as crewmember: Positions guide stops in press to cure
belting to specified thickness and width. Sprays press with solution to prevent adherence to belt
during cure. Helps crew pull belt from roll onto press. Lifts empty roll shell onto $T3windup
rack$T1 and adjusts guides and speed of windup as belt goes onto roll after cure. Adjusts knives
to trim rind from belt. May guide belt over pricker roll prior to going into windup after cure. May
signal OVERHEAD CRANE OPERATOR (any industry) 921.663-010 to lift and position belt
rolls from windup rack to storage area.
GOE: 06.04.13 STRENGTH: H GED: R2 M1 L1 SVP: 3 DLU: 77
553.665-014 BLACK-MILL OPERATOR (chemical)
Tends furnace and shaker screens to produce boneblack
animal charcoal from ground bones: Turns dial on control panel to start feed of ground bones to
furnace and turns handwheel to adjust oscillating speed of shaker screens to maintain
uninterrupted production. Observes recording thermometer to verify specified temperature in
furnace. Inspects conveyors, vibrating feeders, and shaker screens for clogging or malfunction.
Tightens drive belts, using wrenches and other handtools. Gives directions to other workers in
spreading boneblack over cooling floor and in loading cooled boneblack onto conveyors.
GOE: 06.04.19 STRENGTH: L GED: R3 M2 L2 SVP: 4 DLU: 77
Tends equipment that cooks animal stock (animal skins,
splits, fleshings, and trimmings) used to make glue or gelatin: Signals workers to fill kettle with
stock. Turns valve to allow water to flow into kettle to submerge stock. Starts heaters and adjusts
temperature. Cooks stock for prescribed period of time and tests sample of broth for specific
gravity, using hydrometer. Compares hydrometer readings with readings on conversion tables to
determine approximate amount of glue or gelatin that batch will produce. Drains broth from vat
to storage tank, refills kettle with water, and cooks stock several times at progressively higher
temperatures. May stir stock in kettle, using wooden paddles. May tend equipment to wash stock
prior to cooking [WASH-MILL OPERATOR (chemical)].
GOE: 06.04.19 STRENGTH: L GED: R3 M2 L2 SVP: 3 DLU: 77
553.665-022 COOKER TENDER (oils & grease)
Tends cookers that melt grease and tallow from offal,
bone, and meat: Turns valves to admit steam to cooker (steam-jacketed tank equipped with
revolving, power-driven paddles for agitating material) until indicator on steam pressure gauge
reaches specified point. Turns handwheel or lifts lever to open discharge gate of cooker when
light indicates material is ready for further processing. Starts (reverses) agitator paddles that
force cooked material into vat or conveyor hopper. Signals COOKER LOADER (oils & grease)
or OVERHEAD CRANE OPERATOR (any industry) 921.663-010 to refill cooker. May shovel
cooked material from vat into conveyor hopper. May load cookers. May pull material from
cooker, using hoe.
GOE: 06.04.19 STRENGTH: H GED: R2 M1 L1 SVP: 2 DLU: 77
Tends cabinet or room-type driers that heat liquids or
slurries to remove water or other volatile liquid components: Shovels or dumps materials into
pans and places them on drier shelves, in racks, or on wheeled trucks that are pushed into drier.
Observes thermometer and humidity gauge, turns steam or fuel valves, and moves controls to
maintain temperature, humidity, and air circulation in drier, according to specifications. Shuts
down drier at end of drying cycle or on notification by control laboratory. Unloads driers or
notifies other workers to remove dried material. May weigh dried materials and fill bags or other
containers. May feel materials to ascertain dryness.
GOE: 06.04.11 STRENGTH: H GED: R2 M1 L1 SVP: 3 DLU: 77
553.665-030 DRUM-DRIER OPERATOR (chemical)
Tends drum drier that dries activated carbon sludge, used
in variety of industrial and consumer applications: Sets drier controls and starts sludge pumps
and agitators to dry product that meets prescribed standard. Turns valves to increase water
content of sludge to prevent caking, according to hydrometer readings supplied by other workers.
GOE: 06.04.19 STRENGTH: L GED: R2 M1 L1 SVP: 3 DLU: 77
553.665-034 FIRER HELPER (paper & pulp)
Tends equipment that burns condensed black liquor into
black ash: Turns valves to regulate spray of black liquor into cyclone drier and flow of air
through drier to dry black liquor to specified concentration. Determines moisture content of
liquor, using moisture testing equipment. As directed, turns rheostat to adjust mechanism in
mixing tank to feed salt cake into black liquor prior to burning. Turns valves as directed to
channel steam into evaporators or into main line. Pushes $T3steam lance$T1 through boiler
tubes or turns crank that rotates steam jets through boiler to blow out soot and sludge. Scrapes
sludge from interior of furnace, using scraper and rake.
GOE: 06.04.14 STRENGTH: L GED: R2 M1 L1 SVP: 2 DLU: 77
Tends equipment, such as cylindrical ovens, horizontal
pot heaters, tunnel driers, or atmospheric heaters that shrink, cure, or remove moisture from
natural or synthetic rubber materials or products: Loads or feeds rubber materials or products,
such as sheets of raw rubber, devulcanized scrap rubber, rubber coated fabric, or rubber products
into oven, using trays, racks, handtrucks, or conveyors. May lift fabric rolls onto $T3letoff
rack$T1 of heater, using hoist, and thread fabric between feed rollers and onto $T3takeup
roll.$T1 May turn controls to regulate speed and amount of materials conveyed through heated
chamber. Turns heater valves to admit steam or regulate temperature and to admit ammonia
when specified. May start blowers to circulate air. Removes product or material from oven after
specified time. May be designated according to product dried as Drier (rubber goods); Drier
Operator (rubber reclaim.); Drier Tender (rubber goods).
GOE: 06.04.13 STRENGTH: M GED: R2 M1 L2 SVP: 2 DLU: 77
Tends dry houses, cell driers, or drying ovens that remove
solvent and contaminants from plastics materials: Observes temperature and moisture gauges and
turns controls to control drying process. Unloads driers or notifies workers to unload ovens.
GOE: 06.04.13 STRENGTH: M GED: R2 M1 L1 SVP: 2 DLU: 77
553.665-046 STEAM-PRESS TENDER I (rubber goods)
Tends press that cures rubber transmission and conveyor
belting, as directed by BELT-PRESS OPERATOR (rubber goods) I, working as crewmember:
Turns valves to obtain specified pressure and temperature, and sets timers on section of press.
Verifies pressure, temperature, and timers on other sections of press, and notifies
STEAM-PRESS TENDER (rubber goods) II of findings. Pulls belt into press from $T3letoff
rack.$T1 Moves levers to open press. Participates in rolling belt onto $T3windup rack$T1 after
cure.
GOE: 06.04.13 STRENGTH: H GED: R2 M1 L1 SVP: 4 DLU: 77
553.665-050 STEAM-PRESS TENDER II (rubber goods)
Performs following duties to prepare press for curing
transmission and conveyor belting, working as crewmember: Turns pressure valves, adjusts
temperature controls, and sets timers on press sections, following directions of STEAM-PRESS
TENDER (rubber goods) I. Pulls levers to open and close press. Positions shells in $T3windup
rack$T1 and guides cured belt onto roll.
GOE: 06.04.13 STRENGTH: M GED: R2 M1 L1 SVP: 3 DLU: 77
553.665-054 TRAY-DRIER OPERATOR (chemical)
Tends tray drier and drum filter that dries and filters
activated carbon sludge used in variety of industrial and consumer applications: Turns dials and
observes temperature and moisture gauges to control drying process. Pushes empty trays onto
roller conveyor for filling with sludge and transferring filled trays to drier chamber in wheeled
cage.
GOE: 06.04.19 STRENGTH: M GED: R2 M1 L1 SVP: 3 DLU: 77
Controls furnace in which condensed black liquor is
burned to black ash for use in recovering sodium compounds: Turns rheostat control to adjust
mechanism in mixing tank to feed specified quantities of salt cake into black liquor. Turns valves
and air intake ports to regulate spray of liquor and air into furnace, according to combustion
charts, to ensure complete combustion of organic matter. Starts conveyor to carry molten black
ash from taphole of furnace to water dissolving tank in which green liquor is formed, or opens
furnace port allowing ash to flow directly into dissolving tank. Starts motor to pump green liquor
into settling tank. Adjusts valves to channel steam generated by furnace through liquor
evaporators or into main steam line. Cleans liquor pipes, using steam and rod, and scrapes
residue from furnace interior.
GOE: 06.02.14 STRENGTH: L GED: R3 M2 L2 SVP: 4 DLU: 77
553.682-014 CURER, FOAM RUBBER (rubber goods)
Operates conveyorized curing unit from control panel to
process latex mixture into foam rubber sheeting: Starts pump to transfer latex and air into mixing
tank to obtain latex of specified density. Weighs sample of latex in measuring cup to determine if
density meets specifications. Pumps specified compounds into mixing tank with latex and starts
agitators that mix ingredients. Starts belt conveyor and turns setscrews to adjust scraper bars for
dimensions specified for rubber sheeting. Turns dial to regulate heat in curing ovens. Pumps
latex mixture onto belt conveyor that carries it under scraper bars and through curing ovens.
Verifies dimensions of cured rubber sheeting with rule.
GOE: 06.02.13 STRENGTH: L GED: R3 M2 L2 SVP: 4 DLU: 77
553.682-018 EVAPORATOR OPERATOR II (chemical)
Operates evaporator to separate turpentine oils from
rosin: Regulates valves and pump controls to pump specified amount of crude turpentine to
evaporator. Regulates valves and pump controls to draw off vapors from evaporator, leaving
rosin as residue.
GOE: 06.02.18 STRENGTH: L GED: R3 M1 L2 SVP: 4 DLU: 77
Operates reduction furnaces and equipment to produce
catalyst used in manufacture of margarine and shortening: Scoops powder into rotating reduction
furnace that feeds it into mixing tank containing premeasured amount of oils. Observes gauges
and regulates heating and mixing controls to ensure processing according to standards. Turns
valves to pump finished product into holding tank. Opens valve to fill containers with catalyst.
Keeps log of operations.
GOE: 06.02.15 STRENGTH: L GED: R3 M2 L2 SVP: 4 DLU: 77
553.682-026 V-BELT CURER (rubber goods)
Operates automatic presses to cure rubber V-belts: Hoists
uncured belts from storage rack arm, using lifting device and slides belts over collapsible curing
drum. Aligns belts in individual V-shaped rings of drum, and pushes button to expand first drum
segment. Realigns belts in rings and expands last segment. Brushes soap solution on air bag of
drum-curing retainer and pushes button to insert loaded drum into retainer. Observes gauges and
adjusts pressure and temperature valves and regulator arms to maintain specified curing
conditions. Slides carrying device under belts where segments automatically break down when
drum slides from retainer after cure. Forces carrying device between belts and stationary segment
of drum to break belts loose. Lifts cured belts and slides belts onto rack arm. Changes drums and
retainers, using hoist and handtools.
GOE: 06.02.13 STRENGTH: M GED: R3 M2 L2 SVP: 4 DLU: 77
Fuses together plastic sheets, using hot-air gun to melt
and join edges of sheets: Cuts sheets to be joined to form smooth edges, using knife. Sands
edges, using power sander, to form V-joint. Places plastic rod in V-joint and activates hot-air gun
to melt rod, causing mass to fill V-joint and join edges of sheets.
GOE: 06.04.31 STRENGTH: M GED: R2 M2 L1 SVP: 3 DLU: 77
553.684-014 NITROCELLULOSE OPERATOR (chemical)
Screens and dries nitrocellulose to prepare it for use in
making dynamite: Shovels nitrocellulose from drum onto nonsparking screen, using wooden
shovel. Rubs nitrocellulose through screen by hand to remove foreign material. Spreads screened
material on trays and places trays in drying chamber. Starts blower and tests drying material
periodically, using moisture meter, to ensure that moisture content of nitrocellulose meets
specifications. Scrapes dried material into fiber drums for delivery to dynamite mix house.
GOE: 06.04.34 STRENGTH: H GED: R3 M1 L1 SVP: 4 DLU: 77
Tends equipment that evaporates ammonium nitrate
solution to form crystals used in making dynamite: Starts pump to move specified quantities of
ammonium nitrate solution from storage tank to weighing tank. Opens valve to drain weighed
solution into heated tub. Starts agitator to mix solution as water evaporates and turn material as it
crystallizes. Weighs out and pours specified quantities of chemicals into tub to prevent hardening
of ammonium nitrate and to ensure uniform crystallization, indicated by visual inspection. Opens
gate in side of tub to transfer crystals to storage barrels.
GOE: 06.02.18 STRENGTH: M GED: R3 M2 L2 SVP: 4 DLU: 77
Tends heating and vacuum equipment to cure preformed
plastic parts: Positions part in plastic bag and seals bag with hot iron. Inserts vacuum tube in bag
and seals bag around tube with tape. Places part on cart, connects vacuum line to tube to remove
air from bag, and smooths bag around part with brush to ensure complete vacuum. Pushes cart
into curing oven or places part in autoclave. Sets oven controls or turns air-pressure valve of
autoclave, as specified, to cure part. Removes part and cuts away plastic bag, using knife. May
form part by positioning plastic sheet and mold in plastic bag, heating sheet under lamps, and
forcing conformation of sheet to mold by vacuum pressure of bag. May impregnate fabric with
plastic resins and cut fabric into strips for use in laminating preformed part.
GOE: 06.04.13 STRENGTH: H GED: R2 M1 L1 SVP: 3 DLU: 77
553.685-018 BONE-CHAR KILN TENDER (chemical)
Tends gas-fired kiln to reclaim char (activated carbon)
used in filtering corn syrups: Observes thermometers and turns gas valves to heat and maintain
specified temperatures in kiln. Starts conveyors that transfer char to and from kiln. Dumps sacks
of char into kiln to replenish supply lost during firing process.
GOE: 06.04.19 STRENGTH: M GED: R2 M1 L1 SVP: 2 DLU: 77
Empties bone cooking tanks and tends oven that dries
bones from which glue has been extracted: Opens bottom of bone cooking tank. Starts feed
mechanism and rotary paddles of oven. Places rod into top of cooking tank and pushes bones
through opening of tank bottom into feed mechanism of oven. When bones are dried, presses
button to stop rotary action of paddle in oven. Moves lever and locking device to release oven
door. Presses button to actuate paddles inside oven that push dried bones from oven into bags or
onto cart. Loads filled bag onto handtruck and pushes truck or cart to storage area. May turn dials
to regulate temperature of oven. May bag, weigh, and close bags containing dried bones.
GOE: 06.04.19 STRENGTH: M GED: R2 M1 L1 SVP: 2 DLU: 77
Tends equipment that makes cadmium sulfate used in
making pigments for paints and enamels. Shovels cadmium $T3moss$T1 into tank of boiling
water and sulfuric acid to form cadmium liquor. Tests liquor solution for acid and foreign
content, as specified by laboratory.
GOE: 06.04.11 STRENGTH: H GED: R2 M1 L1 SVP: 2 DLU: 77
Tends kiln that develops color of pigments used in
making paints and glass enamels: Moves controls to set automatic heat regulator that maintains
specified temperature in kiln. Adjusts gas burners in kiln, using handtools, and lights pilot flames
and burners. Raises kiln bed or signals CALCINE FURNACE LOADER (paint & varnish) to
raise kiln bed, containing pigments, into kiln and to remove bed from kiln after specified time.
May fill and empty saggers (pigment containers) [CALCINE FURNACE LOADER (paint &
varnish)]. May tend crusher that breaks calcined chunks of pigment into smaller particles. May
tend auxiliary equipment, such as coaler, conveyor systems, pump, and rotary vacuum filter.
GOE: 06.04.11 STRENGTH: H GED: R2 M1 L1 SVP: 3 DLU: 77
Tends equipment that fluffs and dries cotton linters or
woodpulp for further processing into explosives: Places portion of linters or woodpulp on
revolving rollers that feed it into cylinder equipped with picking spikes. Inspects fluffed material
for presence of impurities and fluffy appearance as it is discharged into drier. Moves controls to
maintain temperature of hot-air oven at plant standard and to regulate speed of drier conveyor for
efficient drying. When tending separate picking and drying units, may be designated according to
unit tended as Cotton-Picker Operator (chemical); Linter-Drier Operator (chemical).
GOE: 06.04.19 STRENGTH: M GED: R2 M1 L1 SVP: 2 DLU: 77
553.685-038 CURING-OVEN TENDER (chemical)
Tends ovens that cure fuels loaded (cast) into
rocket-motor cases: Observes recording instrument charts and dials of timing devices to verify
required temperatures and curing-cycle times. Turns valves to switch from automatic-instrument
controls to manual control of steam-supply valves to regulate temperature.
GOE: 06.04.11 STRENGTH: L GED: R3 M1 L1 SVP: 4 DLU: 77
Tends vacuum drum driers that heat liquid compounds to
form caked or powdered chemical products: Connects tube from feed inlet to drum containing
liquid to be dried. Turns steam and coolant valves and observes thermometer to regulate
temperature of steam-jacketed drum enclosed in vacuum chamber, according to specifications.
Starts pump and observes vacuum gauge to maintain prescribed vacuum in chamber. Starts
revolving drum that dries liquid as it splashes against heated drum, forming caked or powdered
product that is removed from surface of drum by scraper blade. Observes and feels dried product,
periodically submits sample for laboratory moisture analysis, and adjusts drying temperature and
vacuum if product does not meet plant standards. Records drying time of batch, gauge readings,
and amount or weight of materials dried. May set scraper blade at specified distance from drum,
using handtools. May fill containers with dried materials, weigh containers, and tag containers
for shipment or storage.
GOE: 06.04.11 STRENGTH: M GED: R3 M2 L2 SVP: 3 DLU: 77
553.685-046 DRIER OPERATOR II (plastic-synth.)
Tends equipment, such as centrifuge and rotary drier, that
removes moisture and recovers plastic resin from slurry: Observes gauges, turns valves, and
starts pumps to regulate flow of slurry from storage tank to centrifuge. Starts centrifuge to
separate resin from slurry and observes flow of partially dried resins into rotary drier. Observes
gauges and turns valves to regulate flow of hot air and maintain specified temperature in drier.
May tend pneumatic conveyor that carries dried resin into storage silos. May measure level of
stored materials in silo, using calibrated plumbline.
GOE: 06.04.13 STRENGTH: L GED: R2 M1 L1 SVP: 2 DLU: 77
Tends batch or continuous rotary driers that remove
moisture from solid chemical materials: Dumps or shovels materials into batch drier chamber, or
starts feed conveyors of continuous drier. Starts drying chamber rotating. Admits steam or hot air
to drying chamber until specified heat is attained, as indicated by temperature chart recorders and
gauges. Opens vacuum valves to withdraw accumulated vapors where materials require drying at
subatmospheric pressure. Stops rotation of drying chamber to dump dried materials, or starts
discharge conveyor to empty contents of chamber and transfer dried product to storage,
packaging, or further processing. May tend auxiliary equipment, such as condensers and vacuum
pumps. Records operating data in equipment log, such as temperatures, pressures, drying time,
and hourly production. May feel discharged materials for specified dryness. May submit samples
to control laboratory for moisture analysis. May regulate drier temperature, and speed of
conveyors and rotary chamber, according to knowledge of process and material being dried.
GOE: 06.04.11 STRENGTH: M GED: R3 M2 L2 SVP: 5 DLU: 77
553.685-054 DRIER OPERATOR IV (chemical) alternate titles: spray drier
Tends spray driers that evaporate water from slurries,
forming caked or powdered product: Pumps slurry to atomizer nozzle in drier and regulates spray
of slurry as instructed. Observes temperature recorders and adjusts valves, controls, and dampers
to heat or cool and direct air through drier to evaporate water or solidify slurry. Observes
discharge conveyor for malfunctions or jamming to maintain uninterrupted flow of dried
materials to storage. Rakes out accumulated cake or powder remaining in drier, and clears
clogged lines, using length of wire. May place empty drums under discharge end of spray tower
to be filled with specified amount of powdered emulsifier. May tend auxiliary equipment, such as
cyclone filters and scrubbing tower to refine product or recover usable materials.
GOE: 06.04.11 STRENGTH: M GED: R3 M2 L2 SVP: 4 DLU: 77
Assists DRIER OPERATOR (chemical) VI in drying
glutinous material, such as gelatin and glue. Starts equipment and turns valves as directed.
Moves glutinous material to drier, using handtruck. Performs other duties as described under
HELPER (any industry) Master Title.
GOE: 06.04.19 STRENGTH: M GED: R1 M1 L1 SVP: 2 DLU: 77
553.685-062 FIRE-HOSE CURER (rubber goods)
Tends steam-heating equipment that cures rubber in
jacketed firehose: Lifts precut lengths of specified rubber tubing and braided fabric hose jacket
onto table. Dusts rubber tubing with soapstone to prevent tubing from sticking to jacket. Turns
crank to wind tubing onto stock wheel. Aligns jacket with mechanical threading device and
clamps threading fixture to end of rubber tubing. Starts winch that pulls tubing into jacket. Lifts
and clamps ends of jacketed hose to fixtures on steam lines. Presses hose into curing cavities on
table that hold hose in flattened position when curing. Observes gauges and turns valve to inject
steam into hose at specified temperature and pressure for curing. Places cured hose on storage
rack.
GOE: 06.04.13 STRENGTH: H GED: R2 M1 L1 SVP: 2 DLU: 77
553.685-066 FIRER, RETORT (chemical)
Tends burners supplying heat to retorts (reaction vessels)
to facilitate heating of materials to produce chemical products: Moves controls to regulate flow
of gas or oil to burners to maintain temperature of retorts at specified reading. Cleans and repairs
retorts, using handtools, scrapers, brushes, and cleaning agents.
GOE: 06.04.11 STRENGTH: L GED: R2 M1 L1 SVP: 3 DLU: 77
553.685-070 KETTLE WORKER (soap & rel.)
Tends kettles that boil soap ingredients: Opens valves to
admit alkali, fat, tallow, lye, and steam into kettles: Observes temperature gauges and rate of
boiling and turns valves to regulate temperatures. Draws samples and delivers them to
laboratory. Adds soda and water, according to instructions, to bring mixture to specifications,
using scoop and hose. Opens valves to drain off glycerine, water, and sludge. May stir soap
solutions with wooden paddle to promote blending.
GOE: 06.02.18 STRENGTH: M GED: R3 M2 L2 SVP: 4 DLU: 77
Tends gas- or oil-fired kiln that burns lime sludge to
recover lime: Turns panel controls to adjust burner and flow of sludge into kiln according to
temperature gauges. Starts conveyor that carries lime from kiln to hopper of slaking machine.
May tend washers and filters that remove cooking liquor from sludge before it is burned.
GOE: 06.04.11 STRENGTH: L GED: R2 M1 L1 SVP: 2 DLU: 77
Tends conveyor, and spraying and drying unit that cools
and dries milled rubber stock: Monitors flow of rubber stock as it drops from mixer through
batch-off mill onto conveyor. Removes stock adhering to mill rollers with long-handled scraper
and frees stock if it piles up on conveyor. Adjusts conveyor speed and turns valves to regulate
water spray and airflow that cools and dries stock.
GOE: 06.04.13 STRENGTH: M GED: R2 M1 L1 SVP: 2 DLU: 77
Tends oven that bakes freshly painted furniture parts to
harden finish: Starts equipment to heat oven to prescribed temperature. Pushes truckload of
dipped or sprayed pieces into heated oven, hangs pieces on hooks suspended from overhead
trolley, or places pieces on conveyor belt and regulates speed of belt through oven in accordance
with temperature of oven and size of pieces. Allows pieces to bake for specified length of time
and removes finished articles from oven.
GOE: 06.04.21 STRENGTH: M GED: R3 M1 L1 SVP: 3 DLU: 77
553.685-086 PIGMENT FURNACE TENDER (chemical)
Tends kiln or furnace that makes pigments from specified
chemical ingredients or develops specified colors in pigments or metallic powders for use in
making paints, enamels, and varnishes: Weighs or measures specified chemical ingredients and
dumps them into furnace hopper, conveyor, blending, pulverizing and sifting machine hoppers,
or into clay saggers. Opens chute on hopper or conveyor, or shovels prepared charge into
furnace. Positions specified temperature cam into automatic heat control unit, or turns dials to
specified setting to regulate temperature, temperature changes, and heating and cooling cycles.
Observes control panel of furnace to verify standard functioning of preset furnace. Opens
discharge chute, or shovels pigment or powder from furnace. May clean and adjust burners on
gas-fired furnaces. May verify color of pigments or powders to standard samples or color chart.
GOE: 06.04.11 STRENGTH: H GED: R3 M2 L2 SVP: 3 DLU: 77
553.685-090 RABBLE-FURNACE TENDER (chemical)
Tends furnace and auxiliary equipment that heat carbon
black to reduce sulfur content by starting feed and discharge conveyors, opening fuel and water
valves, and lighting burners with rabble (torch on end of iron rod). May tend furnace that dries
carbon into granules preparatory to bagging and be designated Granular Operator (chemical).
GOE: 06.04.19 STRENGTH: L GED: R3 M1 L1 SVP: 3 DLU: 77
553.685-094 ROTARY-FURNACE TENDER (chemical)
Tends rotary furnace that roasts sulfur or other materials
to liberate gases for use in processing chemical products: Weighs materials to be roasted and
scoops or dumps specified quantity into furnace hopper. Starts revolution of furnace, consisting
of hollow cylinder mounted between power-driven rollers. Observes thermometer and turns fuel
or steam valves to maintain specified temperature in furnace and efficient roasting of materials.
Shuts down furnace after roasting is completed and assists other workers in cleaning and
preparing furnace for subsequent operation. May adjust and repair furnace, using handtools.
When roasting sulfur for use in production of sulfuric acid, is designated Sulfur Burner
(chemical).
GOE: 06.04.11 STRENGTH: H GED: R2 M1 L1 SVP: 3 DLU: 77
Tends equipment and machinery that converts viscous
soap into flakes and removes excess moisture from flakes: Turns valves to admit refrigerated
water into rollers to chill them to specified temperature to harden soap. Opens valve to allow
viscous soap to flow from crutcher machine into chamber equipped with chilling rollers. Starts
rollers to press soap into sheets. Adjusts flaking knives that cut sheets of soap into flakes. Turns
valve to regulate flow of flakes into drier. Turns valves to admit steam to drying cylinders and
oven jackets to heat drier to specified temperature. Removes sample of dried flakes and tests for
moisture content, using moisture testing apparatus. Adjusts temperatures accordingly. Opens
valve to discharge dried flakes onto conveyor belt leading to storage bins. May sharpen flaking
knives, using hand file. May tend equipment to convert liquid insecticide into flakes and be
designated Flaker Operator (chemical).
GOE: 06.04.19 STRENGTH: L GED: R2 M1 L1 SVP: 2 DLU: 77
Tends retreading mold that vulcanizes camelback (raw
rubber tread) onto tire casing and molds tread design: Places air bag of specified size inside tire,
using tire-spreading device, and clamps tire into mold. Inflates air bag to specified pressure and
heats mold to specified temperature to cook and mold tread. Removes tire after predetermined
time and trims loose ends from molded tread, using knife.
GOE: 06.04.13 STRENGTH: H GED: R2 M1 L1 SVP: 3 DLU: 77
Tends vacuum driers that heat chemical solids to remove
water or other liquids: Observes temperature indicators and vacuum gauges and turns steam
valves and sets dials to regulate temperature and vacuum pressure in drier as specified. Observes
drying material in glass viewer of equipment for conformance with specifications. Collects
samples of material for laboratory moisture test. Records gauge readings, type of material dried,
weight, and drying time.
GOE: 06.04.11 STRENGTH: L GED: R3 M1 L1 SVP: 4 DLU: 77
Tends melting pots in which wax is melted for use in lost
wax casting process: Breaks slabs of wax and deposits them in melting pots. Adjusts thermostat
to maintain specified temperature of liquid wax. Dips wax from melting pot, using hand ladle,
and pours it into receiving pot. May fill cylinders of wax-injection machines with liquid wax and
place cylinders in aging oven for specified period of time.
GOE: 06.04.32 STRENGTH: M GED: R2 M2 L1 SVP: 2 DLU: 77
553.685-114 CADMIUM BURNER (chemical)
Tends furnace and auxiliary equipment that heat
cadmium to produce cadmium oxide: Turns handwheel to tilt and lower mouth of crucible for
initial loading, and dumps cadmium balls into crucible until scale indicator reaches specified
weight. Returns crucible to upright position and turns control to activate automatic pilot that fires
furnace. Positions empty drum under oxide collector discharge outlet, clamps discharge cover
over drum, and turns switch that starts flow of cadmium oxide from collector into drum.
Periodically scrapes molten accumulation from mouth of crucible, using metal rod. Dumps
additional cadmium balls into crucible when indicator falls below prescribed weight, using pipe
carrier. Turns switch to stop flow of cadmium oxide when drum is filled. Removes drum from
under discharge cover, and closes drum with lid and sealing collar. Weighs drum, records weight
on shipping tag, and attaches tag to sealing collar. Periodically scrapes and chips accumulations
of cadmium oxide from floor and from crucibles not in use. Sifts scrapings, weighs, and stores
solids. Maintains production logs.
GOE: 06.04.11 STRENGTH: H GED: R2 M1 L2 SVP: 2 DLU: 86
Tends equipment that dries glutinous material, such as
gelatin and glue, by either of following methods: (1) Starts pumps to admit glutinous material
through coolers to congeal it and through extruders to form noodles. Starts conveyor that moves
noodles through series of drying compartments and turns on heaters and fans in compartments.
Feels noodles for moisture content and regulates speed of equipment to ensure prescribed degree
of dryness. Reads hydrometer to detect excessive moisture in drying compartments and turns on
dehumidifier when necessary. (2) Transfers containers of pearl glue (granular forms) or moves
frames or trays of sheets of glue or gelatin into drying compartment, using handtruck. Starts
heaters and fans in heating compartment. Feels glutinous material for moisture content and
regulates temperature in drying compartment when necessary. May tend equipment that spreads
glutinous material into sheets for drying [SPREADING-MACHINE OPERATOR (chemical)
559.685-170].
GOE: 06.04.19 STRENGTH: M GED: R3 M1 L1 SVP: 4 DLU: 77
553.686-010 BONE-CHAR OPERATOR (chemical)
Unloads furnace in which ground bones are charred to
produce boneblack (animal charcoal): Opens and closes slide gate on bone-char furnace to fill
bucket, mounted on dolly, with boneblack. Tilts bucket, assisted by other workers, to discharge
contents onto cooling floor. Spreads boneblack over floor to cool, using rake. Shovels cooled
boneblack onto conveyor for transfer to storage tanks. May sprinkle water onto material to
facilitate cooling. May shovel ground bones into furnace or retort and dump charred product onto
storage conveyor, using wheelbarrow, and be designated Retort Feeder, Ground Bone (chemical).
GOE: 06.04.19 STRENGTH: M GED: R2 M1 L1 SVP: 2 DLU: 77
Performs following duties in devulcanizing ground scrap
rubber in steam heater: Places pans beside mixer and loads pans with scrap rubber compound.
Loads pans onto heater car by hand or hoist and pushes car into heater. Pulls heater cars out of
heaters, using electric winch, and dumps or shovels devulcanized rubber into storage bins.
GOE: 06.04.11 STRENGTH: H GED: R1 M1 L1 SVP: 2 DLU: 77
553.686-018 CURING-PRESS OPERATOR (rubber tire)
Feeds and off bears machines that cure (vulcanize) tires,
performing any of following duties: Removes foreign matter from molds, using airhose, and
sprays molds with dope solution to prevent tire from sticking. Lifts tires from saddle trucks to
position them in molds. Pushes switch to inflate air bag to expand tire into closing mold. Lifts
cured tires from mold at end of cycle and places tires on inflating unit to preserve tire shape
during cooling period. Lifts tires from inflating unit at end of cooling cycle and loads them onto
overhead conveyor.
GOE: 06.04.13 STRENGTH: H GED: R1 M1 L1 SVP: 2 DLU: 77
553.686-022 DECKHAND (chemical)
Dumps oleoresin into hopper of vats that melt resin
preparatory to distillation into turpentine and rosin: Rolls filled barrels of oleoresin onto scales to
be weighed and rolls weighed barrels to storage area above vats. Upends barrels to dump resin
into hopper of melting vats and pushes resin near steam jets of vats with stick to facilitate
melting.
GOE: 06.04.11 STRENGTH: H GED: R1 M1 L1 SVP: 2 DLU: 77
553.686-026 DRIER OPERATOR V (chemical)
Feeds wet smokeless powder into equipment that dries
powder and removes process solvents, such as acetone, ether, and alcohol: Observes gauges to
ascertain that temperature of water is within specified limits. Removes filled containers of dried
powder from equipment, using handtruck.
GOE: 06.04.11 STRENGTH: H GED: R2 M1 L1 SVP: 2 DLU: 77
Performs following duties to remove moisture from
devulcanized scrap rubber: Cleans adhering scrap stock from drier and shaker screens, using
handtools and airhose. Dumps bags of soapstone into hopper of mechanical shaker that sifts
soapstone to prevent tacky surfaces of stock from adhering to shaker. Opens and closes discharge
chutes of drier as instructed. May move dried stock to storage bins on handtrucks.
GOE: 06.04.13 STRENGTH: M GED: R1 M1 L1 SVP: 2 DLU: 77
553.686-034 FRAME FEEDER (chemical)
Positions gelatin-drying frames on conveyor below
gelatin-spreading machine to receive sheets of congealed gelatin discharged by machine. Slides
loaded frame to elevator which stacks frames on truck. Pushes loaded truck to drying alley.
GOE: 06.04.34 STRENGTH: M GED: R1 M1 L1 SVP: 2 DLU: 77
Feeds crystalline or granular materials to conveyor
system or feed hopper of rotary driers for drying: Starts feed conveyor and shovels material onto
moving belt, or adjusts controls of conveyor or feed hopper to regulate automatic feed according
to instructions from equipment operator. May be designated according to materials fed as
Soda-Drier Feeder (chemical); Sulfur Feeder (chemical).
GOE: 06.04.11 STRENGTH: M GED: R2 M1 L1 SVP: 2 DLU: 77
Assists VARNISH MAKER (paint & varnish) in
manufacturing varnish, performing any combination of following duties: Transfers ingredients,
such as gums, resin, turpentine, and oils from storage to work area, using handtruck. Weighs
specified amounts of dry materials and shovels or dumps them into kettles or vessels. Measures
liquids in receptacle and pours them into kettles or supply tanks. Mixes ingredients in kettles
with paddle. Cleans kettles and other equipment, using high-pressure hose, solvents, and brushes.
Performs other duties as described under HELPER (any industry) Master Title.
GOE: 06.04.11 STRENGTH: H GED: R2 M1 L1 SVP: 2 DLU: 77
553.687-010 DRIER HELPER (chemical)
Performs variety of manual duties in drying and storing
chemical materials, as directed: Turns valves to fill sample bottles for laboratory testing. Inspects
product through sight glasses at various stages of drying process to detect malfunctions. Inspects
equipment and piping for leaks or malfunctions. Notifies equipment operator or supervisor of
unusual conditions. Lowers gauge tape into storage towers to facilitate inventory and production
control. Records gauge readings on operating record. Cleans equipment, using hose and water.
May be designated according to type of drier as Spray-Drier-Operator Helper (chemical).
GOE: 06.04.11 STRENGTH: L GED: R2 M1 L1 SVP: 2 DLU: 77
553.687-014 FURNACE HELPER (chemical)
Observes flow of sawdust on conveyors leading to
carbon-producing furnace and adjusts feed gates as necessary to maintain uniform flow.
Positions sample cans under carbon-discharge spouts of furnace tubes and opens spouts to fill
bottles for laboratory analysis, timing sampling with interval timer. Weighs and labels
containers. Clears jams in feed and discharge conveyors, using rod.
GOE: 06.04.34 STRENGTH: L GED: R2 M1 L1 SVP: 2 DLU: 77
554 COATING, CALENDERING, LAMINATING, AND FINISHING
OCCUPATIONS
This group includes occupations concerned with
imparting a desired finish or ensuring uniform thickness in materials by pressure applied with
rollers; forming or pressing materials into thin sheets or layers and then adding them to other
materials; covering materials and objects with a layer of another material for such purposes as
preserving or decorating them; adding a desired surface effect to materials and objects; and
removing blemishes from them.
Supervises and coordinates activities of workers engaged
in polishing surfaces of plastic sheets to remove scratches, masking sheets preparatory to
shipment, and weighing and tagging sheets. Performs other duties as described under
SUPERVISOR (any industry) Master Title.
GOE: 06.04.01 STRENGTH: L GED: R3 M2 L2 SVP: 6 DLU: 77
554.137-014 SUPERVISOR, COATING (plastic-synth.)
Supervises and coordinates activities of workers engaged
in operating equipment to coat cellophane with solvents, resins, plasticizers, or wax to
moistureproof cellophane. Directs workers in maintenance and cleaning of coating towers, bath
mixers, driers, and solvent recovery equipment. Performs other duties as described under
SUPERVISOR (any industry) Master Title.
GOE: 06.02.01 STRENGTH: L GED: R4 M3 L3 SVP: 7 DLU: 77
Operates machine, alone or as member of crew, to coat,
impregnate, imprint, or form rubber sheeting or rubberized fabric: Turns steam valves to regulate
heat or rolls, judging heat by action of rubber and by feeling rolls with hand. Turns handwheels
or capstan bar to adjust distance between rolls. Verifies thickness of calendered material, using
gauges. Threads fabric or rubber sheeting around and between rollers, through coating reservoirs
or water coolant tanks, and onto pickup reel core or takeoff conveyor. Adjusts knives that trim
selvage or cut material to specified width by moving knives along bar and turning setscrews, or
replaces numbered rack (set) of knives, using wrenches. Adjusts weights on arms of holders so
knives will press against rolls and cut through thickness of material processed. Observes
calendered material for defects, such as bubbles, lumps, streaks, and pitting, and marks defects.
May direct other workers who feed stock, change takeup reels, take off and inspect stamped
parts, and place them in books, boards, and frames. May be designated according to material
calendered as Calender Operator, Fabric (rubber goods; rubber tire); Calender Operator, Gum
Stock (rubber goods; rubber tire).
GOE: 06.02.13 STRENGTH: M GED: R3 M2 L2 SVP: 4 DLU: 77
Controls battery of coating machines that apply coatings
to pharmaceutical tablets to flavor, color, preserve, add medication, or control disintegration
time: Dumps uncoated tablets into rotary pans of machines and starts machine. Pours measured
amounts of liquid coatings, such as medicated syrup, dye, and gelatin, onto tablets to form base
or successive coats according to formula or production order. When applying enteric coating to
control disintegration, pours enteric solution over tablets prior to subcoating. Sprinkles dusting
powder onto tablets and stirs them to prevent tablets from sticking together and to produce
uniform coating. Examines tablets for defects, such as chips and discoloration, and scrapes
coating with fingernail to ascertain dryness. Measures sample tablets, using caliper or
micrometer, and weighs them on balance scale to determine adherence to weight and
coating-thickness specifications. Dumps coated tablets and measured amount of liquid wax into
canvas-lined pan and starts pan revolving to give tablets final glossy coating.
GOE: 06.02.21 STRENGTH: M GED: R3 M2 L2 SVP: 5 DLU: 77
Operates machinery to spread synthetic resins and glass
fibers over continuous sheet of plastics film to prepare materials for subsequent molding: Moves
controls to set and regulate width of sheet and to adjust line speeds with flow rate of materials.
Moves plungers to start flow of synthetic resin solution through metering device (material
buckets). Observes gauges and starts pumps and degassing system on supply tanks to regulate
pressure. Inserts thermometer in synthetic resin to verify temperature. Observes tachometers,
flowmeters, and gauges to verify specified process conditions.
GOE: 06.02.13 STRENGTH: L GED: R3 M2 L2 SVP: 4 DLU: 77
554.384-010 DYER (chemical)
Mixes coloring solution in tank or kettle, and dyes pearl
and plastic buttons to match color of standard button or fabric sample: Weighs powdered
dyestuffs according to formula. Pours powder into mixing bowl or pan, adds hot water, and stirs
with spoon to form paste. Turns water and steam valves to fill dye kettle to indicated level, and
stirs in paste, using paddle or spoon. Immerses wire basket containing buttons in solution.
Withdraws sample buttons from solution, and compares with standard button or fabric sample to
determine if color matches. Lifts basket from solution when color match is attained, immerses
basket in boiling water to rinse excess dye from buttons, and places basket in barrel of
centrifugal drying machine. Moves switch to start dryer that spins excess dye from buttons.
GOE: 06.02.32 STRENGTH: L GED: R3 M2 L2 SVP: 3 DLU: 77
Tends machine that coats uncured rubber or
rubber-coated fabric strips and winds them on drum to make straps for rubber footwear:
Computes number and kind of books required, and keeps production chart. Places strip at back of
drum, threads end through guides and cement-filled reservoir, and inserts end in groove of drum
to secure it. Turns handwheel to regulate machine speed and starts machine that winds strip onto
drum so that each turn abuts and adheres to edge of one previously wound. Stops machine when
drum is filled and pulls knife along drum groove and across wound strip to form sheet of strips.
Pulls sheet from drum onto cutting table, using stick, and cuts sheets into strips of specified
length with knife, using triangular cutting bar as guide. Lifts rows of cut strips with stick and
places them in book.
GOE: 06.04.13 STRENGTH: L GED: R2 M1 L1 SVP: 2 DLU: 77
Tends machines that automatically fold uncured rubber
strip or coated friction tape over parallel reinforcing cords to form strap material to which
buckles, eyelets, or snaps are attached for use on rubber footwear: Calculates from work orders
width, length, and quantity of stock to be made and prepares production schedule. Selects cord,
strip or tape, and folding attachment according to work ticket. Mounts spools of cord on spindles
and roll of strip or tape on arbor. Attaches folder to machine bracket by turning thumbscrews or
using screwdriver. Cuts end of tape on bias, using scissors, and threads tip and cord through
folder. Threads folded strap through paired rollers that press down folded edges. Positions carton
at discharge end, starts machine, and runs strap material into carton. May fold and wind strip into
rolls for cutting into straps by STRAP-CUTTING-MACHINE OPERATOR (rubber goods),
using pedal-operated machine.
GOE: 06.04.07 STRENGTH: L GED: R3 M2 L2 SVP: 2 DLU: 77
554.585-010 CATHODE MAKER (chemical)
Tends tanks and related equipment that coats cathode
screens with asbestos for use in electrolytic cells: Opens valve to fill cathode tank with caustic
liquor. Weighs out prescribed quantity of asbestos and dumps it into tank. Starts air compressor
and opens valve to force asbestos and cell liquor to mixing tank and return it to cathode tank after
agitation for specified time. Draws sample of resulting slurry and determines specific gravity,
using hydrometer. Positions cathode screen over cathode tank, using crane. Connects vacuum
hose to cathode and lowers cathode into tank for asbestos coating, using hoist. Observes vacuum
gauge to determine number of dips or immersion time necessary to apply asbestos coating of
specified thickness to cathode. Applies asbestos tape to secure cathode rim. Transfers coated
cathode to drying area, using crane. Records number of cathodes coated, immersion and drying
time, and quantity of materials used. May tin cathode bars, using tinning compound. May cut
asbestos paper to size and cover screens and plates with new linings.
GOE: 06.04.21 STRENGTH: H GED: R3 M2 L2 SVP: 4 DLU: 77
Tends machine that coats continuous sheet of plastic
material with synthetic resin solutions to impart special properties, such as heat resistance,
impact strength, or waterproofing: Loads roll of material onto unwind stand, using overhead
hoist. Threads material through rollers of coating machine, drier unit, and onto winding machine.
Sets controls to regulate speed of material feed and amount of coating solution. Sets tension on
material by adjusting speed of unwind and windup rolls. Turns valves to regulate steam or turns
on infrared lamps to control drier temperature and moisture. Examines material passing through
drier and onto windup machine for wrinkles or breaks. Patches breaks, using glue. Maintains log
of machine running time and number of rolls processed.
GOE: 06.04.21 STRENGTH: M GED: R3 M1 L2 SVP: 3 DLU: 77
554.586-010 FINISHER (plastic-synth.)
Performs any combination of following duties involved
in final processing of plastics sheets: Removes plastics sheets from overhead monorail conveyor,
weighs them, and replaces them on conveyor. Moves sheets to various locations, using
handtruck. Cuts masking paper to size. Mixes adhesive and transfers it to reservoir of masking
machine. Copies identification data, such as size, thickness, and weight on sheets or labels.
GOE: 06.04.40 STRENGTH: M GED: R2 M1 L1 SVP: 2 DLU: 77
554.587-010 ROLL INSPECTOR (plastic-synth.) alternate titles: slit-roll inspector
Examines finished rolls of cellophane for defects and
verifies accuracy of roll labels: Observes and feels rolls passing on conveyor to detect flaws,
such as wrinkles, streaks, or tears on edges. Measures width and diameter of rolls, using tape
rule. Compares identification labels with specifications to prevent errors. Pushes rejected rolls
onto table. Records number of rolls processed and number of rolls rejected.
GOE: 06.03.02 STRENGTH: L GED: R2 M2 L2 SVP: 3 DLU: 77
Operates four-roll calender to coat fabric with rubber or
produce plastic sheeting and roll sheets to specified thickness: Adjusts automatic control and
observes temperature dial to heat calender rolls to specified temperature. Starts machine and
adjusts conveyor speed to regulate feeding of stock. Turns adjustment wheels of rollers to
specified settings to stretch fabric for calendering. Verifies thickness and width of calendered
stock with gauge and ruler. Positions knife to trim edge of calendered fabric. Interprets work
orders, assigns duties, and informs crew of processing specifications. May operate equipment
from control board.
GOE: 06.02.13 STRENGTH: L GED: R3 M2 L2 SVP: 5 DLU: 77
Tends $T3windup rack$T1 on $T3four-roll calender$T1
that winds calendered fabric onto liner rolls: Starts $T3festoons$T1 that accumulate fabric during
roll change, and stops windup rack. Cuts fabric with scissors between machine and full roll and
guides fabric into roll on auxiliary rack with aid of CALENDER-WIND-UP HELPER (rubber
goods; rubber tire). Stops festoons, starts windup rack, and moves tension and speed levers to
wind new roll. Places full roll onto scale, using hoist. Reads yardage gauge and compares roll
weight with standard on yardage chart for conformance to specifications. Notifies CALENDER
OPERATOR, FOUR-ROLL (plastic prod.; rubber goods; rubber tire) of weight discrepancies or
fabric defects, such as wrinkles and spread cords. May run identification strings into calendered
stock as windup proceeds.
GOE: 06.04.07 STRENGTH: M GED: R2 M1 L1 SVP: 2 DLU: 77
Tends machine that combines two continuous sheets of
material, such as rubber, sponge rubber, fabric, felt, or fleece, working as team member:
Transfers rolls of material to and from machine, using handtruck, and lifts or hoists rolls into
cradles, using chain hoist. Threads ends of cemented and noncemented materials over feed
rollers, between combining rollers, and onto single $T3takeup roll.$T1 Turns wheels or capstan
bolts to set pressure of combining rolls by trial and error to produce complete adhesion of both
materials. Starts machine and moves lever to engage clutch and start material winding. Leans
against one rotating roll of material to control tension and pulls or feeds edge to align it with
other roll, while other worker controls tension and aligns material on opposite end of roll. Stops
winding when either feeder roll is empty and cuts off other roll of material to match length, using
scissors. Tapes ends of unused material, reads yardage indicator, and marks amount left on roll.
GOE: 06.04.09 STRENGTH: M GED: R2 M1 L2 SVP: 2 DLU: 77
Operates letoff, dipping, and drying units of $T3four-roll
calender$T1 to bond rubber to fabric: Positions fabric roll in letoff rack, using hoist, and starts
$T3festoon.$T1 Splices undipped roll to end of roll in process by inserting gum strip between
ends and aligning splice in vulcanizer to cure splice. Adjusts guides and pretension rolls to
maintain specified width of fabric during dip process. Moves controls on central switch panel to
adjust drier temperature, solution level in dip tank, and festoon speed. Notifies CALENDER
OPERATOR, FOUR-ROLL (plastic prod.; rubber goods; rubber tire) of material defects or
machine malfunction. May mix ingredients in agitator drum according to written specifications
to make dip solutions. When operating dip unit independently of calender, tends windup rack
[CALENDER-WIND-UP TENDER (rubber goods; rubber tire)] and is designated Dip-Unit
Operator (rubber goods; rubber tire).
GOE: 06.02.13 STRENGTH: M GED: R3 M2 L1 SVP: 4 DLU: 77
Operates machine to apply cement to masking paper and
press coated paper onto surfaces of plastics sheets to provide protection during final processing
and shipping: Positions paper roll on mandrel, using chain hoist. Threads paper through machine.
Turns valves to fill hoppers with cement from reservoir. Moves levers to set paper cutters and to
adjust pressure on squeeze rolls to accommodate size and thickness of plastics sheet. Turns
screws to set blades that control amount of cement applied to paper and verifies position of
blades, using feeler gauge. Adjusts tension and speed controls to eliminate wrinkling and
excessive coating. Maintains production records.
GOE: 06.04.38 STRENGTH: M GED: R3 M2 L2 SVP: 4 DLU: 77
554.682-018 ROLL OPERATOR (plastic-synth.) alternate titles: calender-roll operator;
mill-roll operator
Operates roll mill to homogenize and roll plastic
compounds into sheeting or slab form: Pushes button to transfer plastic from mixing machine to
revolving heated mill rolls. Cuts material with knife and feeds material back through rolls to
obtain sheet of specified color, consistency, and thickness. Adjusts slitting knives or starts
automatic scraper to strip sheet from rolls. Guides material onto conveyor belt. Observes gauges
or feels material and turns steam and water valves to control temperature of rolls. Cleans rolls to
prevent contamination of stocks, using wire brush, hand scraper, solvents, and airhose. May
adjust roll clearance with hand wrenches.
GOE: 06.02.13 STRENGTH: M GED: R3 M1 L1 SVP: 5 DLU: 77
Operates machine to coat continuous rolls of roofing felt
with asphalt, colored slate granules, powdered mica, or tar, to make roll roofing or shingles:
Threads felt through or around series of coating rollers. Pulls felt through rollers and adjusts
tension. Sets machine controls to gradually increase speed of rollers to specified operating
speeds, or pulls levers and turns valves and wheels to synchronize machine speed and flow of
coating material. Observes gauge and adjusts rheostat to regulate temperature of coating material
in reservoir. Examines felt as it emerges from rollers to ensure that coating material is applied
according to specifications. May feel moving felt to determine whether granules are being
deposited uniformly and are adhering as specified. May be designated according to type of
coating applied as Coater, Asphalt (nonmet. min.); Coater, Slate (nonmet. min.).
GOE: 06.02.18 STRENGTH: L GED: R3 M1 L2 SVP: 4 DLU: 77
554.684-010 CAUSTIC OPERATOR (plastic-synth.)
Immerses plastics sheets into tank containing heated
caustic solution to impart finish to sheet surface: Places sheets into tank. Tests water temperature
and solution concentration, using thermometer and hydrometer. Turns steam valve to regulate
temperature and adds water or caustic solution to maintain specified concentration of solution.
Removes sheets from tank after specified time and places them in rinse tub or under water spray.
Stacks rinsed sheets on absorbent cardboard preparatory to drying and inspection.
GOE: 06.04.13 STRENGTH: M GED: R2 M1 L1 SVP: 3 DLU: 77
554.684-014 FOAM DISPENSER (rubber goods)
Sprays padding solution (liquid rubber foam) in formed
skins (shaped plastic sheets) with hose to produce automotive padded products, such as
dashboards and door panels: Positions cardboard inserts at defroster locations and ignition cluster
to prevent buckling during cure. Positions metal reinforcement panels at clusters and edges of
product to be cured into skin. Dispenses solution in specified areas of skin and pours solution
from cardboard containers around clusters and metal panels to prevent overflow.
GOE: 06.04.32 STRENGTH: M GED: R2 M1 L1 SVP: 3 DLU: 77
554.685-010 BULK-SEALER OPERATOR (plastic-synth.)
Tends automatic, radiant-heat bulk sealer that bonds
plastic sheets for fabricating bags: Places lifts (two sheets of plastic film separated by single
sheet of paper) alternated with asbestos pads on piston of sealer. Straightens disarranged sheets,
using wooden paddle. Starts sealer in which plastic film is bonded as piston slowly rises through
heated chamber. Inspects samples of bonded sheets to detect machine malfunction.
GOE: 06.04.02 STRENGTH: L GED: R2 M1 L1 SVP: 2 DLU: 77
Tends equipment that automatically applies and bakes
enamel or other coating onto fabricated steel products: Fills machine reservoir with coating
solution, such as lacquer, enamel, or varnish. Starts conveyor or feed rolls that carry products to
be coated and baked, through equipment. Sets heating unit at specified temperature and starts
pumps and exhaust fans. Feeds products onto conveyor or between feed rolls that apply coating.
Examines products emerging from baking unit for conformance to coating thickness and
appearance specifications. May mix coating to prescribed viscosity, using viscometer. May
gauge thickness of coating to determine adherence to quality control specifications, using dial
indicator. May be designated according to equipment or process employed as Flash-Oven
Operator (elec. equip.); Operator, Coating Furnace (cutlery-hrdwr.); or according to product
coated as Coating-Machine Operator, Metal Tags And Signs (fabrication, nec).
GOE: 06.04.21 STRENGTH: L GED: R3 M1 L2 SVP: 3 DLU: 77
Tends combining-roll machine that presses and
impregnates synthetic resins and glass fibers between continuous sheets of plastics film to form
homogenous sheeting of specified thickness preparatory to molding operations: Turns crank to
adjust opening between rolls to form sheeting of specified thickness. Verifies width of opening
with feeler gauge. Threads plastics film through rolls. Presses switch to start machine and
observes flow of materials through machine to detect foreign particles and machine
malfunctions. Moves lever to adjust tension on sheeting and to synchronize speed of sheeting
with speed of belt.
GOE: 06.04.20 STRENGTH: L GED: R3 M1 L1 SVP: 4 DLU: 77
Tends machine that cleans, smooths, repairs, and rerolls
fabric liners for reuse in winding uncured rubber and fabric materials, calendered rubber or
rubberized fabric: Positions liner roll in letoff bracket manually or by use of hoist. Starts machine
and guides liner through rollers to ensure evenness of liner and removal of wrinkles. Examines
liner for adhering rubber particles and torn areas. Scrapes rubber particles from liner with
handtool. Sews additional fabric onto liners or repairs defective areas, using sewing machine.
May verify weight and length of roll, using scale and yardage gauge.
GOE: 06.04.07 STRENGTH: H GED: R2 M1 L1 SVP: 2 DLU: 77
Tends machine that coats cloth, fiber, or paper with glue
or other adhesive to prepare material for coating of abrasive: Starts machine and feeds precut
blanks into machine, or mounts roll of base material on machine spindles for automatic feed
through machine. Pours liquid adhesive into container on machine.
GOE: 06.04.21 STRENGTH: L GED: R2 M1 L1 SVP: 3 DLU: 77
554.685-030 LAMINATOR (wood prod., nec)
Tends laminating machine that bonds decorative material,
such as plastic or paper, to face of hardboard panels: Conveys rolls of materials specified in work
order from storage area to laminating machine, using forklift truck. Positions roll on machine
carriage, using chain hoist. Pulls end of material from roll onto takeup rollers of machine and
turns handwheel that moves carriage to align material with panels. Turns dials and moves levers
to set machine roller speed, roller pressure, and heating unit temperature, following processing
specifications. Turns valve to replenish glue supply. Depresses buttons to start machine. Inspects
and measures first panels discharged from machine to verify correct alignment of bonded
material on panel, using tape measure. Adjusts controls to correct machine operations such as
speed of machine units. Severs material between laminated panels, using cutter, to free panels
discharging onto off bearing conveyor. Refills glue reservoir as required. Performs routine
maintenance.
GOE: 06.04.34 STRENGTH: L GED: R3 M1 L2 SVP: 3 DLU: 86
554.685-034 PHOTORESIST LAMINATOR, PRINTED CIRCUIT BOARD (electron.
comp.) alternate titles: hot roll laminator; laminating machine tender
Tends machine that laminates dry photoresist film to
surfaces of panels used in manufacturing printed circuit boards (PCB's): Mounts rolls of
photoresist film and plastic protective film on machine spindles. Threads film through machine
rollers and secures film to takeup spindles. Presses button to activate machine. Adjusts controls
to regulate speed, temperature, and pressure of laminating rollers. Moves levers and adjusts
controls to align panels with edge of film. Feeds panels into roller, or positions panels on
conveyor that feeds panels into laminating machine. Observes lamination process, monitors
speed and temperature gauges, and adjusts controls to ensure compliance with standards.
Removes laminated panels from machine. Cuts excess photoresist and protective plastic film
from panel edges, using knife. May tend machine that scrubs, cleans, and dries PCB panels prior
to laminating process [SCRUBBER MACHINE TENDER (electron. comp.) 599.685-134]. May
examine laminated panels for defects.
GOE: 06.04.09 STRENGTH: M GED: R2 M1 L2 SVP: 2 DLU: 89
554.686-010 CALENDER FEEDER (rubber goods)
Feeds milled rubber stock into rolls of calendering
machine to maintain continuous supply: Lifts pig (roll) of rubber stock from warmup mill
conveyor and pushes it between horizontal rotating rolls until stock is drawn between and rolled
around calender rolls. Turns wheels or capstan bolts to adjust distance between rolls to produce
sheeting of specified thickness. May mount roll of backing material, such as sponge rubber,
insole mixture, or cloth fabric, in cradle and thread it through rolls for coating with rubber.
GOE: 06.04.13 STRENGTH: H GED: R1 M1 L1 SVP: 2 DLU: 77
Positions fabric rolls and string spools on $T3letoff
rack$T1 and removes empty roll shells from calender machine. Inserts ends of fabric into hot
press to splice them. Conveys fabric rolls to and from storage, calender, and production areas,
using electric crane hoist or forklift. Cleans dip tank.
GOE: 06.04.40 STRENGTH: H GED: R2 M1 L1 SVP: 2 DLU: 77
Performs any of following duties at calendering machine
to facilitate coating, imprinting, or forming rubber sheeting or rubberized fabric: Changes fabric
rolls and roll shells, using overhead hoist, on $T3letoff racks$T1 and $T3windup racks.$T1
Threads material through machine. Observes operation to detect faulty calendering. Sets yardage
counter. Turns handwheels, moves lever, or presses buttons on control panel to adjust sheeting
tension and windup speed. Prepares and attaches identification tag to calendered roll. May splice
uncoated roll to end of roll in process inserting gum strip between ends and vulcanizing in bar
splice press. May read yardage gauge and compare weight for conformance to specifications.
May relieve CALENDER OPERATOR (rubber goods; rubber tire). Performs other duties as
described under HELPER (any industry) Master Title.
GOE: 06.04.13 STRENGTH: H GED: R2 M1 L1 SVP: 2 DLU: 77
Positions liner rolls on windup rack and lowers full
calender rolls to floor, using hoist. Cuts roll and starts fabric into liner rolls. Trims ragged fabric
edges, using scissors. Examines fabric for wrinkles or other defects and tags finished rolls to
show weight, yardage, and stock type.
GOE: 06.04.29 STRENGTH: M GED: R1 M1 L1 SVP: 2 DLU: 77
Impregnates fiberglass matting and other fabric materials
with resin compounds for use in laminating plastic products: Places cellophane or wax paper on
worktable and spreads resin compounds over sheet evenly with hand spreader. Places precut
fabric matting on resin and rolls it with wire-mesh-covered roller to saturate matting. May weigh
specified quantities of plastics ingredients on scale and dump them into containers for use in
molding plastic products. May pour premixed resins into saturating tank and thread fabric
through rollers of impregnating machine to prepare material for laminating. May cut specified
patterns from impregnated fabric, using template, hand shears, and knife.
GOE: 06.04.27 STRENGTH: M GED: R2 M1 L1 SVP: 2 DLU: 77
555 GRINDING AND CRUSHING OCCUPATIONS
This group includes occupations concerned with reducing
materials to smaller particles, such as granules, grits, powder, or paste, by means of compression,
smashing, cutting, or a combination of these.
Operates machine to prechop and pulverize vulcanized
scrap rubber for reuse: Transfers material between storage and work areas on pallet, using forklift
truck. Starts prechopper, pulverizer, and connecting conveyor. Places box on scale under
discharge hopper of pulverizer to load ground material to specified weight. Loads scrap into
prechop hopper, selecting it according to specified type, compound, and color. Examines scrap
while loading and removes foreign matter, such as metal, cloth, and plastic. Observes
thermometers and dials for room and exhaust temperatures and amperage used. Adjusts speed of
conveyor feed to pulverizer to avoid overloading and prevent overheating and burning material.
Observes temperature indicators on control panel of water cooling system and air vents, turns
valve to adjust water flow, and opens ports to increase airflow to cool machine jacket or grinding
stock. Examines ground rubber for size and adjusts gap of discharge opening to prevent rubber
from passing until ground to desired fineness. Observes magnetic grid at mouth of pulverizer that
screens pellets to remove any metal missed on visual inspection. Removes screen and wipes off
accumulated metal, using cloth. Folds and tapes filled box top, and marks weight and compound
number on box. Posts amount and type of ground rubber processed to production record.
GOE: 06.02.13 STRENGTH: M GED: R3 M2 L2 SVP: 4 DLU: 77
555.565-010 MILL ATTENDANT I (chemical)
Tends system of grinders, crushers, conveyors, vibrating
screens, and elevators in salt mill that crush and screen rock salt extracted from mine: Moves
switches, levers, and other controls on instrument panels to start and stop equipment. Reads
gauges to verify specified operation of equipment. Starts and stops various conveyors to control
direction of flow, to store salt of specified size in designated storage bins. Observes and listens to
operation of equipment and reports malfunctions to supervisor.
GOE: 05.12.07 STRENGTH: M GED: R3 M1 L1 SVP: 3 DLU: 77
555.585-010 CUTTER OPERATOR (plastic-synth.)
Tends machine that shreds woodpulp to specified size for
use as filler in producing plastics materials: Inserts mandrel through core of woodpulp roll and
mounts roll on unreeling stand, using overhead hoist. Threads sheet into machine feed rolls and
adjusts cutting blade, using handtools. Starts machine and observes discharge of shredded pulp
into conveyor system or automatic weigh bin to ascertain conformity to specifications. Cleans
dust from equipment, using airhose or brush. Records weight and number of rolls cut. May adjust
braking device to prevent bulking or tearing of sheet.
GOE: 06.04.03 STRENGTH: M GED: R3 M1 L1 SVP: 3 DLU: 77
555.665-010 SHREDDER TENDER (chemical)
Tends machine that chops and shreds animal stock (skins,
splits, fleshings, and trimmings) used in making glue. Lifts stock from table, places stock on
conveyor leading into machine and starts machine. Greases and oils machine. May signal other
workers to load stock onto conveyor.
GOE: 06.04.19 STRENGTH: L GED: R2 M1 L1 SVP: 2 DLU: 77
555.682-010 MILLER II (chemical)
Operates mixing, screening, and milling machines to
process salt: Installs specified size screens and rollers in milling machine, using handtools to
obtain salt crystals of designated sizes. Opens chute to admit salt into milling machine and starts
machine. Brushes oversized salt from vibrating screen to prevent clogging. May be designated
according to salt product being milled as Miller, Kiln-Dried Salt (chemical).
GOE: 06.02.11 STRENGTH: H GED: R3 M1 L1 SVP: 7 DLU: 77
Operates mill equipped with rollers to grind paste of
premixed ingredients, such as pigments, resins, solvents, oils, and plasticizers, for use in paint,
lacquer, and ink: Moves controls to set specified roll spacing and pressure. Starts flow of water
through roll cooling system to prevent ignition or discoloration of paste. Adjusts feed gate to
regulate flow of paste from hopper onto feeder roll. Secures scraper blade to takeoff roll and
bolts chute to scraper blade, allowing paste to flow from roll into thinning and storage tanks or
scrapes paste from mill apron into container, using spatula. Tests paste sample for fineness, using
grind gauge, or sends sample to laboratory for analysis. Adjusts roll pressure controls to regulate
flow of paste during grinding. Cleans equipment, using scrapers and solvents. May pump
specified types and quantities of thinners into thinning tank. May blend specified extenders
(chemicals that increase bulk of paint) with paste, using portable mixer.
GOE: 06.02.11 STRENGTH: M GED: R3 M2 L2 SVP: 5 DLU: 77
555.682-018 SAND-MILL GRINDER (paint & varnish)
Operates sand mill that grinds premixed paint ingredients
to disperse solid ingredients in vehicle: Starts mixer to combine ingredients settled in portable
tub. Hangs hose in tub and attaches opposite end to sand mill intake. Turns valve to circulate
cooling water through jacket to prevent mill overheating. Presses buttons to start mill agitator
and pump. Draws paste sample to test for dispersion, using grind gauge, and adjusts pump speed
as indicated by test results. Turns lever to open gate and starts pump to discharge ground mixture
from machine. Washes residue from filter screen, using brush and solvent. Starts pump to clean
sand mill and hose system, using solvent.
GOE: 06.02.11 STRENGTH: M GED: R3 M1 L2 SVP: 3 DLU: 77
Operates mills equipped with grinding stones to grind
paint or paint ingredients to specified fineness: Weighs ingredients, such as pigments and oil on
scale and dumps them into feed hopper of mill. Starts mill and turns valve to admit steam into
mill jacket to heat ingredients. Feels or examines mixture to determine fineness of grind. Turns
screws to set clearance between grinding stones to grind ingredients to specified fineness. Opens
valve or starts pump to transfer mixture into cooling and storage tanks. Cleans millstones,
hoppers, and scrapers, using hot water hose, solvent, and brushes. Replaces worn grinding
stones, using handtools and hoist.
GOE: 06.02.11 STRENGTH: H GED: R3 M1 L2 SVP: 3 DLU: 77
Tends machine that cuts strands of nitrocotton or
pyrocotton into smaller segments for processing: Pumps nitrocotton slurry to feed tanks, starts
beater blades, and opens valves to force slurry against blades. Turns handwheel to adjust speed of
blades during operation according to gauge reading and process specifications, to produce
uniformly beaten product. Pumps beaten slurry over sieve to remove water. Submits samples of
batch to laboratory for approval of product texture. Starts agitators in tub to loosen nitrocotton
and pumps it into $T3poaching$T1 tubs for removal of impurities.
GOE: 06.04.11 STRENGTH: L GED: R2 M1 L1 SVP: 3 DLU: 77
555.685-014 BONE CRUSHER (chemical) alternate titles: glue-bone crusher
Tends machine that crushes animal bones used in
manufacturing animal glue: Starts bone crushing machine conveyor that carries bones into
crushing machine. Pushes button to start second conveyor that carries crushed bones from
machine into cooking tanks for further processing. May tend hydraulic press that extracts grease
and glue from cooked bones and be designated Steam-Bone-Press Tender (chemical).
GOE: 06.04.19 STRENGTH: L GED: R2 M1 L1 SVP: 2 DLU: 77
555.685-018 COPRA PROCESSOR (soap & rel.)
Tends battery of machines that grind and filter copra
(dried coconut meat) into coconut oil and meal: Turns valves to regulate flow of steam that heats
crushing machine to specified temperature. Starts conveyors, crushing machines, and expeller
and signals worker to start feeding copra into feed hoppers. Feels ground copra to ensure that
texture conforms to specifications. Observes oil flowing from expeller for presence of excess
solids, and feels coconut meal to determine if meal contains excessive oil. Observes gauges and
clarity of oil leaving filter presses to determine if pressure inside filters is within specified limits.
Transfers oil to standby filter presses when clarity or pressure deviates from prescribed
standards. Records oil and meal production in log.
GOE: 06.04.19 STRENGTH: L GED: R3 M1 L2 SVP: 3 DLU: 77
Tends machine that crushes scrap vinyl, asphalt, and
asbestos preparatory to reprocessing into floor tile: Starts continuous flow of scrap material from
calender and punch press onto conveyors into crusher. Observes flow of material and regulates
speed of feed conveyor. Removes foreign material from conveyor and dislodges jammed
material. May grind and screen mottle into various size chips used to produce marbleized effect
on hard surface floor coverings.
GOE: 06.04.09 STRENGTH: H GED: R2 M1 L1 SVP: 2 DLU: 77
Tends machine that grinds particles of solid plastics
materials to specified size: Starts machine and dumps or shovels plastics into hopper. Observes
equipment to detect stoppages. May clean equipment with airhose, scrapers, or brushes. May
tend machine that grinds scrap material for reuse and be designated Regrinder Operator (plastic
prod.).
GOE: 06.04.02 STRENGTH: H GED: R2 M1 L1 SVP: 2 DLU: 77
Tends mill and separating equipment that grinds scrap or
devulcanized rubber to reclaim and reprocess rubber: Turns handwheel to adjust clearance
between corrugated rollers of machine to accommodate stock. Loads rubber into machine
hopper. Starts machine and observes stock to ensure passage through rollers. May use magnetic
device to remove metal particles from ground scrap rubber. Moves handtrucks, containing rubber
stock, into position for loading. May clean or replace clogged shaker screen that sifts out
oversize pieces. May pick bead wires from ground rubber tire scrap [BEAD PICKER (rubber
reclaim.)]. May be designated according to type of grinding as Fine Grinder (rubber reclaim.).
GOE: 06.04.07 STRENGTH: H GED: R2 M1 L2 SVP: 2 DLU: 77
Tends machine that pulverizes solid or semisolid
materials used in manufacturing chemicals and related products: Installs screens of specified type
and mesh in machine, using handtools, or starts auxiliary shakers (vibrating screens) that size
ground particles. Starts feed conveyors, or shovels or dumps materials into machine hopper.
Starts grinder and observes ground product discharged onto conveyors or into containers for
impurities, lumps, or improperly sized particles. Cleans machine and conveyors, using airhose,
scrapers, and brushes, to prepare equipment for grinding subsequent batches. May shovel ground
product into containers for storage, shipment, or further processing. May tend machines that fill
bags or drums with product. May weigh containers of materials, record weight, and enter number
of containers filled on inventory records. May be designated according to material or product
ground as Filtrose Crusher (chemical); Paradichlorobenzene-Machine Operator (chemical).
GOE: 06.04.11 STRENGTH: M GED: R2 M1 L2 SVP: 3 DLU: 78
555.685-038 MILL ATTENDANT II (chemical)
Tends roll mill that crushes and disperses particles of
pigment material in batches of viscid organic pigments: Starts roll mill, and scoops or pours
batch of viscid organic pigment into hopper of roll mill. Observes distribution of pigment
particles on roll of mill, and moves lever to adjust rollers to ensure even grinding and distribution
of pigment particles in viscid batch. Places container at discharge end of mill to collect batch.
Clamps lid on container to prepare container for shipment. Cleans roll mill, using solvent, brush,
and cloth.
GOE: 06.04.11 STRENGTH: M GED: R2 M1 L1 SVP: 2 DLU: 77
Tends hydraulic press and auxiliary equipment that
forms, granulates, and sizes calcium chloride prior to use in chemical processing: Starts
automatically fed ram press that forms calcium chloride into pellets. Examines pellets ejected
from press and turns dials that regulate length of ram stroke and control cooling of press,
according to specifications. Tends jaw crusher, granulator, and screens that crush, granulate, and
screen calcium chloride to produce granules of specified size. Lubricates and repairs equipment,
using handtools. Places drums under chute to fill with finished product for shipment, storage, or
further processing.
GOE: 06.04.11 STRENGTH: M GED: R3 M2 L1 SVP: 3 DLU: 77
Tends machine that pulverizes lumps of salicylic acid:
Starts machine and flow of lumps of salicylic acid into machine. Dumps pulverized salicylic into
drums. Weighs and seals drums and uses powered handtruck to transport or stack filled drums.
GOE: 06.04.11 STRENGTH: H GED: R2 M1 L1 SVP: 2 DLU: 77
555.685-050 SCRATCHER TENDER (fabrication, nec)
Tends mill equipped with scratcher that granulates color
mix for use in hard-surface floor covering: Adjusts roll clearance and speed of scratcher motor to
attain required particle size, using handtools. Starts scratch mill, and positions pans under
discharge trough to receive granulated mix from scratch mill. Records number of pans filled.
Records color and pattern data on tickets and affixes tickets to loaded handtrucks. Pushes
handtrucks to storage area. May weigh and add oils or other liquid materials to mix as required.
May be designated according to task performed as Color Receiver (fabrication, nec).
GOE: 06.04.09 STRENGTH: H GED: R2 M1 L1 SVP: 3 DLU: 77
555.685-054 SECOND OPERATOR, MILL TENDER (chemical)
Tends roller mill and auxiliary equipment, such as pumps
and agitators (reaction vessels) that facilitate production of phosphoric acid by strong-acid
process from reaction of sulfuric acid with ground phosphate rock. Pumps acid into tank trucks
and loads ground phosphate rock into hopper trucks as directed.
GOE: 06.04.11 STRENGTH: L GED: R3 M1 L1 SVP: 3 DLU: 77
555.685-058 SHREDDER OPERATOR (plastic-synth.)
Tends machine that heats and chops sheets of alkali
cellulose into crumbs for use in producing rayon: Opens hatch of machine to accommodate
sheets of cellulose dumped into machine by other workers. Closes and secures hatch and starts
machine. Turns valves and observes thermometers to maintain temperature of product at plant
standard. Stops machine after prescribed time for unloading by other workers.
GOE: 06.04.09 STRENGTH: L GED: R2 M1 L2 SVP: 3 DLU: 77
Tends one or more machines that crush, screen, and
pulverize soap solids and chips to form powder: Dumps soap chips into hopper of crusher, using
shovel or chain hoist. Starts equipment, observes operations, and stops machines when
malfunctions occur. Observes sifting of soap granules in power-driven shaker-screen and
removes chunks for further grinding in crusher. Places empty drum or bag under spout of
pulverizer to receive soap powder. Removes filled containers to storage area.
GOE: 06.04.19 STRENGTH: H GED: R2 M1 L1 SVP: 2 DLU: 77
555.685-066 WHEEL-MILL OPERATOR (chemical)
Tends grinding mill that crushes powder or explosives
ingredients, such as sulfur, saltpeter, and charcoal, used in manufacturing gunpowder: Charges
mill with prescribed amounts of ingredients. Starts mill wheel revolving for specified time or
until materials are crushed and mixed and rakes or dumps contents into containers for storage or
further processing. When tending mill that crushes finished powder to grains of specified size to
attain uniform ballistic properties, is designated Graining Operator (chemical). May tend
vibrating screens to separate particles of varying sizes.
GOE: 06.04.11 STRENGTH: M GED: R2 M1 L1 SVP: 2 DLU: 77
Feeds equipment that breaks up cakes of dehydrated
nitrocellulose to facilitate subsequent mixing and packing processes: Feeds nitrocellulose cakes
into hopper of electrically powered cylinder fitted with spikes that break up cakes. Removes
nitrocellulose for further processing and packing. May monitor scale to determine when specified
amount of smokeless powder is expelled from machine into tub and to turn lever to stop
machine.
GOE: 06.04.11 STRENGTH: H GED: R2 M1 L1 SVP: 2 DLU: 77
555.686-014 SOAP CHIPPER (soap & rel.)
Feeds soap bars into machine that reduces them to chips:
Starts machine and conveyor belt. Dumps soap bars onto conveyor belt or feeds them into
machine hopper. Observes operation of machine that automatically reduces bars to chips and
discharges chips onto conveyor belt or into tray. Routes soap chips by conveyor belt to drying
room, or spreads chips evenly in trays and removes them to drying room. May fill boxes with
soap flakes or bars of soap.
GOE: 06.04.09 STRENGTH: M GED: R1 M1 L1 SVP: 2 DLU: 77
555.687-010 SCALE OPERATOR (chemical)
Weighs finished glue from crushing units, and dumps it
into containers for shipment.
GOE: 06.03.02 STRENGTH: L GED: R2 M1 L2 SVP: 2 DLU: 77
556 CASTING AND MOLDING OCCUPATIONS, N.E.C.
This group includes occupations, not elsewhere
classified, concerned with shaping or solidifying molten or powdered materials by pouring,
injecting, or pressing them into molds or other receptacles, and allowing or causing them to
solidify.
Supervises and coordinates activities of workers engaged
in casting, molding, inspecting, and packaging fabricated plastic products: Sets up and adjusts or
oversees set up of machines and equipment used to fabricate products, according to blueprint
specifications. Reviews production schedules and assigns work. Inspects products for defects,
such as surface flaws, color, flashing, or die marks. Measures product to verify conformance to
specifications, using measuring instruments, such as micrometers, vernier calipers, and plug
gauges. Observes packaging operations and examines containers to verify conformance to
standards. Trains worker in job duties and production techniques. Performs other duties
described under SUPERVISOR (any industry) Master Title.
GOE: 06.01.01 STRENGTH: L GED: R4 M3 L4 SVP: 7 DLU: 89
Supervises and coordinates activities of workers engaged
in manufacturing molded plastic toys and toy parts: Sets up injection-molding machines. Trains
workers in operation of machines and assembly methods. Performs other duties as described
under SUPERVISOR (any industry) Master Title.
GOE: 06.02.01 STRENGTH: L GED: R4 M3 L3 SVP: 7 DLU: 77
556.130-018 MOLDING SUPERVISOR (plastic prod.)
Supervises and coordinates activities of workers engaged
in molding plastic products, applying knowledge of molding machine setup and operating
techniques and production machining methods: Reads operating logs to identify inoperative
injection or blow molding machines, determines reasons for machine malfunction, and arranges
for machine repair. Reviews production schedules and work orders, and assigns duties to workers
according to order priorities. Studies quality control reports to identify product defects and
directs machine operators to adjust machines to eliminate flaws. Examines molded products from
each machine to verify conformance to specifications. Conducts or directs training of new
employees in machine operation. Confers with management and other supervisors to resolve
production problems. Performs other duties as described under SUPERVISOR (any industry)
Master Title.
GOE: 06.02.01 STRENGTH: L GED: R4 M3 L3 SVP: 6 DLU: 89
Operates steam-heated conveyor press that molds and
vulcanizes uncured sponge rubber to form arch cushions for rubber footwear: Reads work ticket
to determine number of molds and blanks required for each style and size cushion. Notifies
CALENDER OPERATOR (rubber goods; rubber tire) of stock thickness and DIE CUTTER (any
industry) of dies to use and amounts of blanks needed. Selects required number of molds and
baskets of blanks and supplies them to workers. Starts conveyor press and turns valves to
regulate heat of vulcanizing plates. Turns handwheel to adjust distance between vulcanizing
plates and molds, using feeler gauge. Directs workers engaged in positioning blanks in mold
cavities and in removing molded cushions. Observes operations and examines finished product
for defects, such as lumps, pits, and blisters, and to determine if mold cavities are filled and
rubber is completely vulcanized. Operates warming mill to prepare stock for calendering from
which blanks are cut for use in cushion press.
GOE: 06.02.13 STRENGTH: M GED: R3 M2 L2 SVP: 4 DLU: 77
Sets up and adjusts automatic compression, injection, or
transfer machines used to mold plastic materials to specified shape, following blueprints, and
utilizing knowledge of machine functions: Reads specifications to determine machine setup and
prescribed temperature and time settings. Positions, aligns, and secures assembled mold or mold
components, and machine accessories, onto machine press bed, according to guide marks, using
hoist, power tools, and handtools. Attaches connecting lines, such as air, oil, or water to mold,
and adjusts controls to regulate mold temperature. Sets machine controls and turns dials to
regulate specified machine forming pressure and plastic curing time in mold. Starts machine to
produce sample product. Measures and visually inspects sample product for surface and
dimensional defects, using microscope, micrometer, and gauges, and adjusts machine setup to
eliminate defects. May repair and maintain machines and auxiliary equipment, using handtools
and power tools. May be designated according to type of machine set up as
Compression-Molding-Machine Setter (plastic prod.); Injection-Molding-Machine Setter
(plastics prod.).
GOE: 06.01.02 STRENGTH: M GED: R3 M2 L3 SVP: 6 DLU: 89
Sets up and adjusts battery of automatic machines that
compress powdered plastics into tablets used in molding plastic buttons: Installs specified dies
and punches onto machine holder plate according to tablet size specifications, using wrench.
Adjusts stroke of punch according to tablet density specifications. Starts battery of automatic
machines that compress powdered plastics into tablets. Breaks sample tablets between fingers to
test hardness. Weighs sample lot of tablets to verify density. Adjusts machine controls to
eliminate tablet defects.
GOE: 06.01.02 STRENGTH: L GED: R3 M1 L2 SVP: 4 DLU: 77
Sets up and operates injection-molding machines to cast
products from thermoplastic materials: Installs dies on machine, according to work order
specifications, using clamps, bolts, and handtools. Sets machine controls, regulating molding
temperature, volume of plastic, molding pressure and time, according to knowledge of plastics
and molding procedures. Dumps premixed plastic powders or pellets into hopper, and starts
machine. Pulls lever to close dies and inject plastic into dies to cast part. Removes finished
product from dies, using handtools. Trims excess material from part, using knife. May mix
thermoplastic materials and coloring pigments in mixing machine, according to formula. May
grind scrap plastic into powder for reuse.
GOE: 06.02.13 STRENGTH: M GED: R3 M2 L2 SVP: 5 DLU: 77
Operates preexpander and continuous molding machine
that expands and molds polystyrene beads under heat and pressure, forming bead board: Reads
work order to determine resin type and density requirements for bead board production. Shoves
intake tube in resin and presses tube into coupling of venturi feed system. Presses buttons and
turns valves to activate centrifuge, supply steam, and feed resin to expander. Fills volumetric can
with beads and weighs beads to determine density, using balance scale. Compares bead density
with production requirements. Reads steam pressure and temperature gauges and turns steam
valve or rotates auger disk, adjusting heat and resin feed rate to control bead density. Connects
hose of molder feed hopper to aging bin and pushes feed hopper into place to feed molding
machine. Turns venturi feed valve, sending air through feeder to draw beads from hopper into
molder. Starts molding machine. Guides bead board from molder through rollers of trimmer and
saw to start board. Monitors gauges and observes operation of molding machine and equipment
to ensure operation according to specifications. Inspects bead board for specified fusion and
finish. Turns steam and air valves to adjust heat and bead feed rate to prevent machine overload
and to correct flaws in bead board. Records lot number of resin, feed rate, and steam pressure, for
various densities and board dimensions. Computes production in board feet to determine output.
GOE: 06.02.13 STRENGTH: M GED: R3 M2 L2 SVP: 4 DLU: 77
Tends centrifugal casting machine that casts plastic
cylinders used in fabrication of button blanks: Mixes resins and chemicals to form liquid plastic,
following formula. Sets timing device which stops machine automatically, and presses button to
start centrifugal casting machine. Pours liquid plastic into rotating drum of machine that spreads,
hardens, and shapes mixture into cylindrical layer of uniform thickness on wall of drum. Slits
cylinder in straight line along length, at end of cycle, using razor, and peels and removes sheet
from drum wall. Uncurls and spreads sheet on table and dusts sheet with powder, using mitt, to
dry surface. May pour plastic mixture of different color onto semihardened first layer. May tend
machine that cuts button blanks from sheet.
GOE: 06.04.19 STRENGTH: M GED: R3 M2 L2 SVP: 3 DLU: 77
Molds imitation marble (scagliola) into objects, such as
desk sets, penholders, sections of pillars, and interior decorative slabs: Compounds materials in
vat according to formula. Pours mixture into molds or on glass-flanged table. Dumps set pieces
out of molds. Smooths objects with brick covered with moist emery, rottenstone, or other
abrasive. Polishes parts with felt-covered brick. May use acetic acid solution to increase
polishing quality of felt and add to luster of polished surface.
GOE: 06.02.30 STRENGTH: H GED: R2 M2 L1 SVP: 5 DLU: 77
Operates hydraulic press, equipped with steam or
electrically heated platens, to cast rubber or plastic matrices and rubber dies or types: Turns dial
to set electric thermostat or steam valves to maintain specified temperature in press. Inserts chase
containing type into press to heat type to specified temperature, or inserts engraved metal plate
into press. Places sheet of hard plastic or similar material on type and allows to heat for
prescribed period of time. Pulls lever to impress material into type form to make matrix. Peels
matrix from type, places rubber of plastic sheet on matrix and inserts it in press. Places metal
strips (bearers) of specified thickness along sides of rubber or plastic and matrix to limit depth of
pressing and determine thickness of die. Repeats heating and casting process to produce rubber
die. Trims excess rubber from edges of designs, letters, symbols, and figures, using curved knife.
May mix casting compound and water to puttylike consistency, spread compound on mold plate,
invert casting plate over type, press compound into type and dry compound in oven. When
making rubber dies or type, may be known as Vulcanizer, Rubber Plate (pen & pencil; print. &
pub.).
GOE: 06.02.18 STRENGTH: M GED: R3 M2 L2 SVP: 4 DLU: 77
Tends equipment that forces viscose fluid between two
adjustable metal bars and into acid bath that coagulates fluid into continuous sheet of cellophane:
Reads gauges and observes image on video display screen to ascertain thickness and uniformity
of cellophane sheet. Turns clamp nuts, using wrench, to adjust bar gap to produce sheet of
specified thickness and uniformity. Turns valves and starts pumps to regulate flow of viscose.
Maintains log of operating conditions and output of casting machine.
GOE: 06.04.13 STRENGTH: L GED: R3 M2 L2 SVP: 4 DLU: 77
Tends steam oven that heats liquid plastics in glass molds
(cells) to form sheets: Examines and removes defective molds from handtrucks. Loads trucks
holding molds into ovens and records time molds entered ovens. Turns steam and cold-air valves
to maintain specified pressure and temperature in oven. Inserts knife into baked sheet or feels
sheet to determine that sheet is baked to specifications.
GOE: 06.04.13 STRENGTH: M GED: R2 M1 L1 SVP: 3 DLU: 77
Removes plastics sheets from glass molds (cells):
Positions mold on stand or table. Inserts wedge between edges of glass plates and pries slates
from plastics sheet. Stacks plate glass on rack or trucks. Records weight of plastics sheets. May
lower molds into soaking tanks to loosen plastics sheet, using hoist.
GOE: 06.04.40 STRENGTH: M GED: R2 M1 L1 SVP: 2 DLU: 77
556.665-010 CAKE-PRESS OPERATOR (plastic-synth.)
Tends hydraulic presses that compress and bake chipped,
rolled, or slabbed plastics materials into cake molds for sheeting: Turns valves to regulate
pressures and temperatures in baking and cooling presses. Turns dial indicator arm to set
press-cycle time. Pulls hopper lever to fill mold with specified weight of plastics chips. Places
platen on top of mold and lifts filled mold to roller conveyor. Pushes baked molds out of heated
press, using bar. Pushes filled molds from conveyor and supply rack into baking press. Turns
valve to close press. Observes meters and gauges to verify specified temperatures, pressures, and
press-cycle times.
GOE: 06.04.13 STRENGTH: H GED: R3 M2 L1 SVP: 4 DLU: 77
556.665-014 CORRUGATOR OPERATOR (plastic-synth.)
Tends machine that pulls thermosetting plastics sheeting
materials through preheating oven and forming frames to form sheets to specifications: Turns
dials on control panel to regulate specified temperatures in oven and molds. Moves lever to
regulate tension on sheeting. Observes gauges to verify temperatures. Observes width and
alignment of sheeting to ensure flanging of sides. Positions mold frame laterally in machine to
correct alignment. Feels stiffness and consistency of molded sheeting to detect machinery
malfunctions. Signals PLASTICS-SPREADING-MACHINE OPERATOR (plastic-synth.) to
synchronize feed of materials into molding process. Replaces molds in frame to conform to
product specifications. Patches tears in film, using gummed tape.
GOE: 06.04.13 STRENGTH: L GED: R3 M2 L2 SVP: 4 DLU: 77
556.665-018 MOLDER, PIPE COVERING (plastic prod.)
Tends equipment that fuses granulated polystyrene into
pipe coverings, used for insulation: Positions funnel into top of mold and dumps or opens chute
of overhead hopper to load specified quantities of material. Removes funnel and adjusts stripper
plate and cutter rim to ensure molding of material into specified sizes and shapes. Manually locks
mold and opens steam valve to admit heat. Observes heat recorder and adjusts valves to attain
specified temperature to fuse materials for prescribed period of time. Unlocks mold and removes
pipe covering, using hoist. Moves product to storage area, using handtruck. May mold special
products, such as toys and games, and be designated Specialty Molder (plastic prod.).
GOE: 06.04.13 STRENGTH: M GED: R2 M1 L1 SVP: 3 DLU: 77
Sets up and operates blow molding machine to mold
plastic products according to specifications: Turns valves to start flow of water and release air
pressure to machine. Moves machine controls to set timing unit and temperature of heating unit
and start automatic feed mechanism. Adjusts machine mandrel and aligns mandrel with mold
chamber, using wrenches. Starts molding machine that automatically feeds material from mixing
unit to mandrel and to mold chamber. Closes chamber to mold product under heat and pressure.
Removes workpiece from mold after timing device opens mold, and trims excess material from
workpiece, using knife or bandsaw. Regrinds excess material and unsatisfactory workpiece for
reuse, using grinding machine. May weigh completed workpiece to determine accuracy of
machine operation.
GOE: 06.02.13 STRENGTH: L GED: R3 M2 L2 SVP: 3 DLU: 77
Sets up and operates compression molding machines to
mold plastic and carbon, graphite, or copper powder products according to specifications: Installs
dies on press, using clamps, bolts, and handtools, and coats dies with parting agents, according to
work order. Sets thermostat to regulate temperature of dies. Weighs premixed compounds and
dumps compound into die well, spreads fabric on die and dumps compound over fabric, or fills
hoppers of machines that automatically supply compound to dies during machine operation,
using scoop. Presses button or pulls lever to activate machines to compress compounds between
dies to form and cure specified products. Removes cured products from mold, using handtools
and airhose. Observes machine operation and examines products ejected by machines to
determine whether products meet specifications, using calipers. Turns pressure control knobs,
bolts, and handwheels to adjust machines. May mix catalysts and coloring pigments with plastic
compound, using paddle and mixing machine. May operate compression molding machines to
form product under pressure only and be designated Cold-Molding-Press Operator (plastic
prod.). May be designated Press Operator, Carbon Products (elec. equip.).
GOE: 06.02.13 STRENGTH: H GED: R3 M2 L2 SVP: 5 DLU: 88
Sets up and operates plodder machine to compress milled
soap into bars: Unbolts head of machine and inserts specified plate that shapes and sizes bar.
Opens valves to admit steam into heating coils, water to reduce heat caused by friction on
compression screw, and create vacuum to draw soap through machine. Unbolts filter cap from
machine and changes filter. Starts machine. Inspects compressed bars for specified color, size,
and smoothness.
GOE: 06.02.18 STRENGTH: L GED: R3 M1 L2 SVP: 4 DLU: 77
Sets up and operates machine to compress granulated or
powdered ingredients into products, such as medicinal tablets and storage battery pellets: Installs
dies in machine and adjusts spring tension and ram pressure of air- or hydraulic-powered press,
according to specifications, using handtools. Presses control button to activate machine. Scoops
ingredients into hopper or positions canister of powder on top of hopper, using overhead lift.
Raises lever to stop machine and collects samples of product, according to established frequency,
using tweezers. Examines, weighs, and tests samples for defects, such as surface chips and pits,
soft centers, and excessive brittleness, using micrometers, scale, and hardness tester; or
determines dimensions of sample to verify machine setup, using calipers, micrometers, and
go-not-go gauges. Routes sample to lab for analysis, according to procedure. Adjusts machine
pressure and tension to remove product flaws and ensure conformity to product specifications.
Records product information, such as scrap quantity, machine number, and ingredients, used to
complete work ticket. Places completed work tickets with trays of product awaiting further
processing. Removes and cleans dies and compression chambers, using swabs. May only operate
machines and notify supervisor or setup personnel of needed adjustments to machines. May pour
metal bottom sections of battery and battery pellets into bins of consolidation equipment that
operates automatically in conjunction with press machines to insert pellets into cans to form
partial assembly of battery. May apply heat to pellets to impart desired color prior to assembly
into bottom sections of battery, using torch and asbestos squares. May be designated
Compressor, Battery Pellets (elec. equip.).
GOE: 06.02.11 STRENGTH: M GED: R3 M2 L2 SVP: 4 DLU: 87
Inspects viscous plastics material in plate glass molds
(cells) and removes defects preparatory to curing: Examines material through glass sheet to
detect defects, such as air bubbles, dirt particles, and other foreign matter. Stands cell on end to
elevate bubbles to surface and inserts spatula between molds to remove bubbles and foreign
matter from edges. Inserts metal clip into mold, using spatula, and maneuvers clip, using magnet
to remove defects from body of cell. May weigh cell on floor scale.
GOE: 06.03.02 STRENGTH: L GED: R2 M1 L1 SVP: 4 DLU: 77
Seals and encapsulates magnetic, electrical, electronic,
and mechanical components of aircraft and missile parts and assemblies in plastic and other
sealant materials, using handtools, power tools, and equipment: Mixes specified amounts of
resins, curing agents, and fillers in container, according to formula, using spatula. Cleans parts to
be sealed and encapsulated, using solvents, brush, and rags. Positions component parts in molds
and pours or injects sealing compound into molds. Places molds in preset oven for specified time
to harden mixture around units. Smooths and finishes surfaces of hardened sealing compound,
using scratch remover, files, sander, and other work aids. May apply protective coating to
component parts by spraying or dipping parts in resin vat. May engrave identifying symbols,
letters, and numbers on unit encasement, using pantograph engraving machine. May inspect
components prior to sealing and encapsulating, using preset measuring devices. May operate
curing equipment. May build temporary molds from metal, putty, plastic, and other materials.
GOE: 06.04.34 STRENGTH: M GED: R3 M2 L2 SVP: 4 DLU: 88
Casts plastics resin monomer in glass molds (cells) to
form sheets: Opens feedline to fill scale tank with specified amount of solution and mounts cell
on filling table. Moves table lever to hold cell at inclined position and inserts funnel in cell
opening. Fills mold with premeasured amount of syrup, using pitcher or hose. Turns valves to
control solution flow rate and adjusts angle of cell to avoid formation of air bubbles. Removes
funnel and seals mold opening with tape, gasket, or other sealing device. Places cell on rack.
GOE: 06.04.32 STRENGTH: M GED: R2 M1 L1 SVP: 4 DLU: 77
556.684-022 NEEDLE-BAR MOLDER (carpet & rug)
Positions loom needles into slots of mold and pours
liquid resins into mold to cast needle bars for use in weaving on looms: Selects type and size
mold according to type and size loom needles to be set. Weighs out and mixes resins and
hardeners to prepare casting material. Inserts and aligns loom needles into slots of mold, and
clamps top onto mold. Pours casting mixture into opening in mold and allows mixture to set for
specified time. Removes cast needle bar from mold, using pliers, and smooths rough spots, using
steel wool, sandpaper, and electric emery wheel. Breaks up cracked or broken needle bars, using
hammer, to salvage reusable loom needles. Hammers out bent places in used loom needles to
prepare needles for recasting.
GOE: 06.04.32 STRENGTH: L GED: R2 M1 L1 SVP: 2 DLU: 77
556.684-026 RUBBER MOLDER (fabrication, nec)
Molds rubber display statuettes and models of hands,
feet, and heads for attachment to display mannequins: Brushes lubricant onto interior of mold.
Pours liquid rubber into mold until full. Pours surplus rubber from mold after shell of rubber has
formed on inside of mold. Strips form from mold after rubber has set. Trims edges of form, using
knife and smooths surface, using sandpaper.
GOE: 06.02.29 STRENGTH: L GED: R2 M1 L1 SVP: 4 DLU: 77
556.684-030 LOADER-DEMOLDER (furniture)
Casts plastic furniture parts, using molds, furniture stock,
and plastic molding compound and gun: Conveys pallets loaded with furniture stock to work site,
using industrial truck. Places furniture stock inside specified mold, clamps mold to furniture
stock, and places mold onto conveyor. Inserts nozzle of molder gun between mold and furniture
stock and dispenses plastic compound into mold around furniture stock to cast plastic furniture
parts, such as edge bands. Unclamps and removes cast parts from mold after specified setup time,
using chisel and knife.
GOE: 06.04.32 STRENGTH: M GED: R2 M1 L1 SVP: 3 DLU: 86
556.685-010 AIR-BAG CURER (rubber tire)
Tends steam-heated press that molds and cures air bags
used in automatic tire curing presses: Weighs slugs of rubber to obtain specified charge.
Positions bag core in mold, using hoist. Places charge in mold cavity and presses switch to close
press and start curing cycle. Lifts core from mold when curing cycle is completed. Pushes lever
to lower hydraulic clamp on core and pulls air bag free, using hoist. Counts and tallies cured air
bags. May set automatic timer for specified curing cycle.
GOE: 06.04.13 STRENGTH: M GED: R2 M1 L1 SVP: 2 DLU: 77
Tends hydraulic press that compresses smokeless powder
into block form for further processing: Charges press, using colloidal smokeless powder. Closes
compression chamber and opens valves to compress powder. Removes block from chamber. May
be designated according to pressing stage as Final-Block-Press Operator (chemical);
Preliminary-Block-Press Operator (chemical).
GOE: 06.04.11 STRENGTH: M GED: R2 M1 L1 SVP: 2 DLU: 77
Tends presses that mold cover material on bowling-ball
cores preparatory to steam curing, performing any combination of following duties: (1) Cuts
rubber cover stock to approximate size, using knife, and lays specified number of rubber squares
in mold half. (2) Positions mold half under press ram and presses button to lower ram into mold
to shape rubber. Places bowling-ball core in every other mold with marked, weighted area away
from seam. (3) Places cover, mold half on core, and pushes pins through mold flanges to hold
halves in position. Places mold into press and presses button to lower ram and to mold cover to
core. (4) Pulls $T3flash$T1 from mold seam and places or pounds brackets onto mold flange to
hold mold together during curing. Opens press, pounds pins out of flange, and stacks mold on
pallet. May clean cores prior to molding operations, using cabinet sandblast equipment.
GOE: 06.04.13 STRENGTH: M GED: R2 M1 L1 SVP: 3 DLU: 77
Tends compression-molding machines that mold
thermosetting plastics into products, such as automobile heater housings, ashtrays, buttons,
electronic parts, plastic panels, and dishes: Dumps specified amount of plastic powders or pellets
into hopper of machine, or positions pellets or sausage-shaped plastics in mold installed on
machine. Starts machine that compresses plastic into mold under heat and pressure, and allows
plastic to set for specified time. Removes product from mold and cleans mold, hopper, and bed
of machine, using airhose and handtools. May place plastics material on hot grid or in oven to
soften it prior to molding. May weigh prescribed amount of material for molding. May place
plastic sheet into machine fixture to fabricate buttons.
GOE: 06.04.13 STRENGTH: L GED: R2 M1 L1 SVP: 2 DLU: 77
Tends equipment that compresses powdered cosmetics,
such as face powder, eye shadow, or rouge, into cakes or sticks for use in compacts or cylindrical
cases by either of following methods: (1) Spreads or brushes glue onto pans set into indentations
of mold board. Fills individual molds with powder and pulls handle to force die into molds and
compress powder. Positions mold on die of press and starts press that squeezes powder into cakes
or sticks. Removes molds and dumps product onto tray to dry. (2) Scoops cosmetic powder into
hopper of molding and pressing machine and starts machine. Places molds on conveyor that
carries them into machine for automatic filling and pressing. Shakes or brushes loose powder
from cosmetic cakes ejected by machine and places them on tray to dry. Discards cakes having
irregularities, such as bubbles, indentations, and cracks. Feeds mold pans into glue machine and
turns preset valves to spray molds with glue and dry for reuse.
GOE: 06.04.09 STRENGTH: L GED: R2 M1 L1 SVP: 3 DLU: 77
556.685-030 DIPPER (rubber goods)
Tends machine that dips forms into tanks of coagulant or
liquid latex to produce rubber goods, such as gloves and balloons: Lifts $T3form board$T1 from
conveyor and fastens form board to machine bed with hinge clamps and slide bolts. Manually
inverts bed and moves lever to submerge forms in tank of solution according to specifications.
Raises and rocks bed to create movement that dries coagulant or equally distributes and sets latex
on forms. Lifts boards to conveyor for next process. Adds solutions to tanks, using dipper to
speed drying time or replenish supply to specified level. May tend automatic dipping machine
that fabricates artificial rubber gloves. May be designated according to dipping solution used as
Coagulant Dipper (rubber goods); Latex Dipper (rubber goods).
GOE: 06.04.13 STRENGTH: M GED: R2 M1 L1 SVP: 2 DLU: 77
Tends conveyorized machine that dips forms into liquid
latex to produce rubber goods, such as balloons, finger cots, and prophylactics: Mixes liquid
latex in drums, using electric mixer or wooden paddle. Dips latex from drum into cans, and
conveys filled cans on handtruck to machine holding tanks. Pours latex into gravity flow tank to
maintain specified tank level. Starts machine that moves forms through various vats, driers,
ovens, and rinses in continuous operation to form product. Removes sample of latex goods from
form after final dip, weighs it, and adds solution of ammonia or latex to tank when weight does
not meet requirements. Changes filters in latex tanks. Replaces dirty, loose, or broken forms on
conveyor. Adds water softener to curing tanks. Verifies temperature and humidity on instrument
control charts.
GOE: 06.04.13 STRENGTH: M GED: R2 M1 L1 SVP: 3 DLU: 77
Tends injection-molding machines that form plastic or
rubber products, such as typewriter keys, phonograph records, and luggage handles: Dumps
plastic powder, preformed plastic pellets, or preformed rubber slugs into hopper of molding
machine. Starts machine that automatically liquefies pellets, slugs, or powder in heating
chamber, injects liquefied material into mold, and ejects molded product. Observes gauges to
ensure specified molding temperature and pressure are maintained. Examines molded product for
surface defects, such as dents and cracks. May heat plastic material over steamtable or in oven to
prepare material for molding. May remove product from mold, using handtools. May trim
$T3flash$T1 from product, using shears or knife. May place product in cold water or position it
on cooling fixture to prevent distortion.
GOE: 06.04.10 STRENGTH: L GED: R2 M1 L1 SVP: 2 DLU: 81
556.685-042 MATTING-PRESS TENDER (rubber goods)
Tends press that molds and cures rubber sheeting for use
as floor matting: Places roll of calendering rubber sheeting in $T3letoff rack$T1 using hoist, and
unwinds sheeting onto bed of steam-heated curing press. Aligns rubber sheeting with edges of
die, and closes press to mold and cure rubber sheeting for specified time. Winds cured rubber
matting onto powered spindle. Continues process until roll is completed.
GOE: 06.04.13 STRENGTH: M GED: R2 M1 L1 SVP: 2 DLU: 77
556.685-046 MOLDER, FOAM RUBBER (rubber goods)
Tends hydraulic steam press that heats molds filled with
mixture of foam rubber particles and latex (liquid rubber) to form cushions and mattresses:
Carries filled mold from mixing machine to table of press. Smooths mixture in mold to distribute
it evenly. Positions top cover on mold and places mold on press bed. Turns valve to lower ram
against mold that heats and cures mixture. Removes mold, dumps molded product, and places it
on storage rack. May grind foam rubber scrap, using electrically powered grinding machine. May
mix ground foam rubber particles with latex, using mixing machine, and fill molds with mixture
[MIXER, FOAM RUBBER (rubber goods)].
GOE: 06.04.13 STRENGTH: M GED: R2 M1 L1 SVP: 3 DLU: 77
556.685-050 MOLDER, MACHINE (pharmaceut.)
Tends equipment that heats and transfers mixture to
conveyorized molds to form drug and toilet products, such as lipsticks and suppositories: Sets
thermostat control to specified setting and opens valve to circulate coolant through pipes of
mold-cooling chamber. Starts conveyor that carries empty molds into cooling chamber. Turns
valve to admit product to reservoir of molding machine, starts agitator, and sets thermostat
control to heat product to specified pouring temperature. Starts pump to fill molds as they pass
on conveyor. Removes damaged or defective molds and adjusts mold scraper to prevent overflow
or underfilling of molds.
GOE: 06.04.11 STRENGTH: M GED: R3 M2 L1 SVP: 4 DLU: 77
556.685-054 PARADICHLOROBENZENE TENDER (chemical) alternate titles: paradi
tender; para operator
Tends equipment that cools and solidifies
paradichlorobenzene preparatory to storage, shipment, or further processing: Pumps chemical
into water-jacketed molds and turns valve to circulate chilled water through jacket and solidify
material. Opens valve to admit steam to jacket to loosen crystallized product for removal. May
break solidified product into smaller pieces preparatory to crushing, using wooden stick. May
tend crusher to granulate product. May fill containers with crushed product and transfer
containers to storage or shipping area, using handtruck.
GOE: 06.04.11 STRENGTH: L GED: R2 M1 L1 SVP: 2 DLU: 77
Tends pilling machine that compresses plastics powder
into pellets or biscuits of specified weight and shape: Dumps plastics powders into machine
hopper, using drum hoist or starts screw conveyor that loads hopper with material from storage
bin. Opens gate valve to control flow of powder from hopper into machine. Turns steam valve to
regulate temperature of machine according to ammeter gauge, and adjusts die pressure to attain
specified hardness of pill. May clean, change, and adjust die. May be designated according to
type of machine tended as Rotary Preformer (plastic prod.; plastic-synth.); Single-Stroke
Preformer (plastic prod.; plastic-synth.).
GOE: 06.04.13 STRENGTH: H GED: R2 M1 L1 SVP: 4 DLU: 77
Tends automatic molding machines that mold
preexpanded polystyrene beads under heat and pressure into cast foam products: Observes
platens and listens to steam exhaust to determine end of molding cycle. Lifts cast foam products,
such as balls, coolers, displays, and packing nests, from mold cavities while platens are parting.
Presses cycle repeat button to reactivate molding machine, and blows loose beads from mold
cavities as platens close, using airhose. Examines castings for post-expansion, fusion, shrinkage,
and pits to ensure product meets quality standards. Rubs wire screen along mold parting line on
casting to remove $T3flash.$T1 May wrap advertising label around cooler cover and secure
label, using masking tape. May adjust machine knobs to compensate for variations in product,
such as moisture content and bead density.
GOE: 06.04.13 STRENGTH: L GED: R2 M1 L1 SVP: 2 DLU: 77
Tends heated presses that mold and cure rubber goods or
sports equipment, such as bowling balls, golf and tennis ball covers, and golf ball cores: Moves
mold to press, using powered truck or handtruck. Sprays inner surface of mold with lubricant to
prevent rubber from sticking. Positions $T3preform rubber,$T1 half-shells, or cores in mold
cavities or on lower die and places upper die over rubber. May insert metal parts in mold cavities
to join with rubber during process. Closes mold and pushes it into press or moves lever to raise
lift-table. Closes and starts press. Sets timer for specified curing time. Pulls mold from press and
strips articles from mold. Tears $T3flash$T1 ring from edge of workpieces. Removes rind from
molds, using airhose and steel wool. May cut preform rubber for molding. May be designated
according to articles molded as Curer, Acid Drum (rubber goods); Gasket Molder (rubber
goods); Golf Ball Molder (toy-sport equip.); Heel Molder (rubber goods); Outsole Molder
(rubber goods); Rubber-Heel-And-Sole Press Tender (rubber goods).
GOE: 06.04.13 STRENGTH: M GED: R2 M1 L1 SVP: 2 DLU: 77
556.685-070 RECORD-PRESS TENDER (recording)
Tends automatic steam-hydraulic press that molds plastic
compound into phonograph records: Places record labels over top and bottom center pins of
press, and places preweighed and heated biscuit (plastic compound) into press mold. Moves lever
to close mold and start press on cycle that molds biscuit under pressure and heat to form
phonograph record. Removes record at end of cycle, places record onto spindle of edge trimmer,
and presses lever to start turntable that rotates record against circular blades to trim $T3flash$T1
from record edge. Examines record for flaws, such as discoloration and scratches. Retains
specified record samples for audio testing. May tend machine that automatically inserts labels
and compound into mold, forms record, punches center hole, and trims flash from record edge.
GOE: 06.04.13 STRENGTH: L GED: R2 M1 L1 SVP: 3 DLU: 77
556.685-074 SLUG-PRESS OPERATOR (elec. equip.)
Tends machine that compresses moist welding rod
coating mix into cylinder-shaped slugs: Dumps mix into forming chamber of slug press, using
forklift. Presses button to close press and activate ram that automatically forms and ejects slug.
Slips cellophane bag over slug or places it in container to prevent crusting or dehydration. Cleans
machine, using brush, scraper, and airhose.
GOE: 06.04.19 STRENGTH: M GED: R2 M1 L1 SVP: 2 DLU: 77
Tends press that compacts deodorant and mothicide
crystals into blocks: Bolts dies in press, using handtools. Pours crystals into lower half of press
die. Turns handwheel to force upper half of die down and press crystals into block form. Lifts
lever to eject block from press.
GOE: 06.04.11 STRENGTH: L GED: R2 M1 L1 SVP: 2 DLU: 77
Tends machine that molds thermoplastic sheets into
plastic products: Places sheet on top of mold, positions sealing frame around sheet, and fastens
frame to rim of mold, using clamps. Pushes button to start machine that heats sheet, draws it into
mold to form product, and sprays product with cool water or air to harden product. Removes
product from molds and reloads thermoplastic sheet into machine. May trim excessive molding
material from products, using knife, scissors, or bandsaw.
GOE: 06.04.13 STRENGTH: L GED: R2 M1 L1 SVP: 2 DLU: 77
Tends blow molding machine that automatically forms
plastic toy parts: Observes continuous operation of automatic molding machine, adjusts plastic
flow, and notifies supervisor of machine malfunctions. Removes molded part from conveyor or
mold and trims $T3flash$T1 from part, using knife, hammer, and file. Examines part for defects,
such as bubbles, splits, or thin areas, and weighs part on scale to ensure specifications are
maintained. Stacks molded parts in boxes for subsequent processing. Throws flash and rejected
parts into regrinder machine to be recycled.
GOE: 06.04.13 STRENGTH: L GED: R2 M1 L1 SVP: 2 DLU: 86
Tends machine that casts plastic containers: Fills tubs
with prescribed amounts of colored thermoplastic powder and zinc compound, using scoop and
scale. Positions tubs containing mixture to facilitate loading of molds. Fills molds with specified
amount of mixture, closes mold covers, and depresses toggle latches to lock covers in place.
Presses buttons to start centrifugal-casting machine that automatically heats, spreads, hardens,
and shapes mixture into plastic molds to form refuse containers. Pulls toggle latches to release
mold covers and removes covers. Breaks seals that hold plastic containers in molds and removes
containers from molds, using handtool. Wipes moisture from inside of molds, using cloth rag.
Trims flashing (excess plastic) from containers, using utility knife.
GOE: 06.04.19 STRENGTH: M GED: R1 M1 L1 SVP: 2 DLU: 86
Assists CAKE-PRESS OPERATOR (plastic-synth.) in
compressing and baking chipped, rolled, or slabbed plastics materials into cake molds for
sheeting: Positions empty molds on platform scales. Spreads plastics chips evenly over mold,
using spreader. Pushes molds along roller conveyor from baking press to cooling press. Pushes
cooled molds from press onto roller conveyor. Removes platen from mold and pushes it along
roller conveyor to storage rack. Removes cake from mold and trims $T3flash,$T1 using knife.
Stacks cakes on pallets. Pushes empty mold along conveyor to scale. Cleans molds and presses,
using knife and scraper. Performs other duties as described under HELPER (any industry) Master
Title.
GOE: 06.04.13 STRENGTH: H GED: R2 M1 L1 SVP: 2 DLU: 77
Prepares plastics sheets for removal from glass molds
(cells), performing any combination of following duties: Pulls materials, such as cellophane,
rubber tubing, or tape, from cells. Unscrews clamps and pries spacing devices from cells. Sorts
rubber tubing according to size and stacks clamps in bin for reuse. Loads cells on conveyor or
stacks cells in racks and lowers racks into tank solution, using hoist.
GOE: 06.04.20 STRENGTH: H GED: R2 M1 L1 SVP: 2 DLU: 77
Strips molded latex or plastic products, such as masks,
puppets, and footwear, from molds, performing any of following methods: (1) Removes mold
from conveyor emerging from drying oven and clamps it in holder to secure mold. Trims excess
plastic from mold top, using knife. Pries section of workpiece from mold wall, grips workpiece
manually or using stripping pliers or $T3prongs,$T1 and twists and pulls footwear from mold.
(2) Dusts talc into molds and removes masks or puppets, using knife. (3) Immerses rack of molds
in water tank to cool them, dries molds, using airhose, and pulls masks or puppets from molds,
using pliers. Places acceptable items on transfer belt or in box and damaged ones on salvage pile.
May clean molds by hand or using steam hose. May be designated according to material used as
Stripper, Latex (rubber goods); Stripper, Soft Plastic (plastic prod.).
GOE: 06.04.13 STRENGTH: M GED: R1 M1 L1 SVP: 2 DLU: 77
Fills jars with suppositories ejected from automatic
molding machine, preparatory to capping: Positions empty jar under chute of machine to fill jar
with suppositories ejected from machine that automatically melts, molds, and refrigerates
glycerine, forming suppositories. Places filled jar on conveyor that carries jar to capping
operation. May assist MOLDER, MACHINE (pharmaceut.) in adjusting mold scraper and
replacing damaged or defective molds.
GOE: 06.04.11 STRENGTH: L GED: R1 M1 L1 SVP: 2 DLU: 77
Coats bowling ball molds components with parting agent,
installs ball cores, and assembles and seals molds preparatory to filling and curing: Inspects parts
to ensure clean and dry condition and applies parting agent, using brush or spray gun. Installs
core on support bolt and turns bolt to adjust core to center of mold. Lays yarn gasket in groove
around bottom flange, aligns top of mold over bottom, and secures it with thumbscrews or
clamps. Places completed mold in rack for filling. May disassemble molds and remove cured
balls from molds.
GOE: 06.04.32 STRENGTH: M GED: R2 M1 L1 SVP: 2 DLU: 77
556.687-014 CELL PREPARER (plastic-synth.)
Prepares molds (cells) used in casting liquid plastics
materials into sheet form: Inserts wooden or plastic wedges between sides of glass cells to widen
cell opening. Folds paper into funnel shape and inserts paper funnel in cell opening to provide
passage for liquid plastics. Records identification data on tag and attaches it to cell.
GOE: 06.04.24 STRENGTH: H GED: R2 M1 L1 SVP: 2 DLU: 77
556.687-018 MOLD CLEANER (rubber goods)
Cleans, stores, and distributes molds used to form rubber
goods: Conveys molds to presses according to work orders, manually or using handtruck. Sprays
molds with steam to remove protective oil or cleaning fluid. Immerses used molds in tank of hot
cleaning fluid, manually or using hoist, to loosen adhering rubber particles. Removes rubber
particles from mold cavities, using hand or powered wire brush. Brushes oil on mold before
storing to prevent rusting. Places mold in storage racks. May sandblast molds to renew surfaces.
May repaint identifying data on cleaned molds. May disassemble molds for cleaning and
reassemble cleaned molds, using handtools.
GOE: 06.04.39 STRENGTH: H GED: R2 M1 L1 SVP: 2 DLU: 77
556.687-022 MOLDER, TOILET PRODUCTS (pharmaceut.)
Fills molds with heated mixture to form drug and toilet
products, such as lipsticks, deodorant, and eyeshadow sticks: Pours or opens valve to admit
mixture slowly into mold cavities to avoid forming bubbles. Places mold on chilling plate or in
refrigerator, or starts fan to cool and congeal contents. Scrapes excess material from mold, using
spatula. May open mold and remove formed product. May insert lipstick cases or other
containers into molds to hold and form product. May pump or pour mixture into
temperature-controlled kettle prior to molding to heat mixture to pouring temperature. May be
designated according to product molded as Lipstick Molder (pharmaceut.); Suppository Molder
(pharmaceut.).
GOE: 06.04.11 STRENGTH: L GED: R2 M1 L1 SVP: 3 DLU: 77
556.687-026 POURER (rubber goods)
Fills curing molds with latex to cast foam rubber products
by any of following methods: (1) Inserts hose nozzle in opening of closed mold and twists hose
clamp to control flow and fill mold with latex, observing vent overflow to determine when mold
is full. (2) Pulls lever on bottom of mixing bowl to fill mold as mold is carried in position by
conveyor. Scoops excess latex from mold, using scraper to prevent overflow during curing. May
stir latex in mold, using paddle to remove air bubbles. May feel latex to determine consistency.
May manually pour measured amount of latex into dipping tank into which molds are inserted to
form coated latex articles.
GOE: 06.04.32 STRENGTH: M GED: R1 M1 L1 SVP: 2 DLU: 77
556.687-030 MOLD FILLER (toy-sport equip.)
Fills bowling ball molds: Lifts mold from supply cart,
places mold on holding fixture, and positions filler hole of mold under spigot of resin tank. Turns
valve to open spigot and control flow of resin from tank into mold. Turns valve to stop resin flow
when mold is filled. Lifts filled mold from holding fixture onto storage cart.
GOE: 06.04.32 STRENGTH: M GED: R1 M1 L1 SVP: 1 DLU: 86
557 EXTRUDING OCCUPATIONS
This group includes occupations concerned with forcing
or pulling materials through dies or similar small openings to form a variety of objects, such as
plastic rods, tubing, and synthetic fibers.
557.130-010 SUPERVISOR, EXTRUDING DEPARTMENT (plastic prod.)
Supervises and coordinates activities of workers engaged
in adjusting and operating machines to extrude and print polyethylene film used in manufacture
of bags: Examines polyethylene film from extruding machine for defects and conformance to
dimensional specifications. Examines samples from printing machine for clarity and registration
of print, color intensity, and discriminations of shading to determine quality of print on film.
Trains new workers in operation and setup of machines. May adjust and install replacement parts
on machines. Performs other duties as described under SUPERVISOR (any industry) Master
Title.
GOE: 06.02.01 STRENGTH: H GED: R4 M3 L3 SVP: 8 DLU: 77
Supervises and coordinates activities of workers engaged
in extruding plastic sheets: Observes installation of dies, and examines extruded sheets for
defects. Trains new workers in machine operation and setup. May diagnose operating difficulties
and adjust machine cycles. Performs other duties as described under SUPERVISOR (any
industry) Master Title.
GOE: 06.02.01 STRENGTH: M GED: R4 M3 L3 SVP: 7 DLU: 77
Sets up and operates machine to extrude thermoplastic
materials to form tubes, rods, and film according to specifications: Installs dies, machine screws,
and sizing rings, using handtools. Couples hose to die holder to circulate steam, water, air, or oil
to die. Weighs and mixes pelletized, granular, or powdered thermoplastic materials and coloring
pigments in tumbling machine according to formula. Fills machine hopper with mixed materials,
using conveyor auger, or stuffs rolls of plastic dough into machine cylinders. Starts machine and
sets controls to regulate vacuum, air pressure, sizing rings, and temperature; and synchronizes
speed of extrusion with pulling rolls. Examines extruded product for defects, such as wrinkles,
bubbles, and splits. Measures extruded articles for conformance to specifications, using
micrometers, calipers, and gauges; and adjusts speed and weight controls or turns hot and cold
water, air, oil, or steam valves to obtain product of specified dimensions. Tests physical
properties of product with acid-bath tester, burst tester, and impact tester. May reel extruded
product into rolls of specified length and weight [EXTRUDER-OPERATOR HELPER (plastic
prod.; plastic-synth.)].
GOE: 06.02.13 STRENGTH: M GED: R3 M2 L2 SVP: 5 DLU: 77
557.382-014 WINK-CUTTER OPERATOR (rubber goods)
Sets up and operates machines to extrude uncured rubber
into continuous strip and to cut strip into specified lengths and weight for molding rubber
footwear outsoles: Installs dies on tube machine, turns steam valve to heat die and screw
chamber, feeds milled rubber chunks into machine hopper, and starts machine to force rubber
through die to form continuous strip [TUBER-MACHINE OPERATOR (rubber goods; rubber
tire)]. Threads extruded strip through cold-water tank and holddown bars, and between feeder
belts to cutter. Turns wheel to adjust feed speed to length of blank cut. Starts machine and
measures and weighs sample blank, using ruler and scale, for conformance to specifications.
Removes cut pieces from discharge belt and places them on trays.
GOE: 06.02.07 STRENGTH: L GED: R3 M2 L2 SVP: 4 DLU: 77
Assists EXTRUDER OPERATOR (plastic prod.;
plastic-synth.) in extruding thermoplastic materials to form tubes, rods, and film: Tapes end of
extruded article to reel spindle and starts machine that winds material onto revolving spindle.
Measures extruded article with measuring wheel and cuts it to specified length, using saw or
knife. Removes roll or coil from spindle, weighs roll, and records length and weight of roll on
shipping tag. Saws scrap tubes and rods into lengths for grinding in hammer mill, using bandsaw.
Starts hammer mill and feeds sawed scrap into mill to grind it for reprocessing. May mix
thermoplastic materials and pigments, according to formula, for feeding extrusion machine.
Performs other duties as described under HELPER (any industry) Master Title.
GOE: 06.04.13 STRENGTH: H GED: R2 M2 L1 SVP: 2 DLU: 77
557.564-014 PUMP TESTER (plastic-synth.)
Verifies adjustment of pumps used to force cellulose
solution through spinnerettes, forming rayon, to ensure that pump speed conforms with plant
specifications for prescribed weight of yarn: Turns valve to transfer measured amount of solution
to container and times flow, using stopwatch. Weighs container and solution and records
findings.
GOE: 06.03.02 STRENGTH: L GED: R3 M2 L2 SVP: 4 DLU: 77
Tends machine that extrudes continuous synthetic
filaments from resins to be used in making twine: Pours resin into loading drum of machine, and
pours buckets of color resin into hopper of machine. Cleans extruding die or installs new die in
machine. Observes thermostat heat-control unit and notifies engineer of deviations from
prescribed temperature. Notifies supervisor when extruded filaments fail to meet specified
standards for thickness and color. Tends tumbling machine that rotates drums of resin to mix
different colors of resins before they are poured into extruder.
GOE: 06.04.13 STRENGTH: H GED: R2 M1 L1 SVP: 3 DLU: 77
Tends machines and auxiliary equipment that extrude
continuous synthetic filaments from liquid polymer: Starts metering pumps and observes
operation of machines and equipment to ensure continuous flow of filaments extruded through
spinnerettes and to detect processing defects, such as drips, filament stains or missing, oversized,
or fused filaments. Notifies other workers through intercom when defects occur, necessitating
interruption of extruding process, to clean spinnerettes. Opens cabinet doors to cut threadlines
(multifilaments) away from guides, using scissors. Lowers pan inside cabinet to catch molten
filaments until flow of polymer through $T3packs$T1 is stopped. Presses metering-pump buttons
and turns valves to stop flow of polymer. Cuts entangled filaments wrapped around gears of
machine, using pliers. Restarts metering pumps, notifies other worker to receive threadlines,
pulls extruded filaments together below spinnerettes to form threadlines, and inserts threadlines
through guides to facilitate drawing process on floor below. Observes flow of finish across finish
rollers and turns valves to adjust flow to specifications. Occasionally removes polymer deposits
from spinnerettes and equipment, using silicone spray, brass chisel, and bronze-wool pad. Wipes
finish rollers with cloths and washes finish trays with water when necessary. Marks type of
malfunctions on maintenance tag, and attaches tag to machine for subsequent repair.
GOE: 06.04.13 STRENGTH: M GED: R2 M1 L1 SVP: 3 DLU: 77
Tends machines that form continuous synthetic filaments
from liquid polymer and lay tow in cans according to specified pattern: Installs $T3pack$T1 into
machine, using handtools, and turns lever to activate metering pump which controls amount of
polymer extruded through pack. Catches extruded filaments in compressed-air gun and threads
filaments through guides to capstans. Separates filaments at spinnerette, by hand, inserts cooling
tube into spinnerette, and pushes lever to force air through tube to cool filaments. Guides tow
over capstans and into device that lays tow into cans according to specified pattern. Observes
machine operation, panelboard, gauges, and rotameter to detect machine malfunction. Turns
valves and levers to adjust machines as necessary. Cuts windup from capstan. Notifies Polymer
Department, using telephone, when color of polymer is not according to specifications.
GOE: 06.04.13 STRENGTH: M GED: R3 M1 L2 SVP: 4 DLU: 77
Sets up and operates hydraulic press to extrude blocks of
smokeless powder into strands preparatory to cutting, drying, and bagging: Attaches specified
dies to compression cylinder of press with thumbscrews or clamps. Inserts block in compression
cylinder and locks cover in place with thumbscrews. Turns ram control valve to extrude powder
slowly to avoid explosion. Examines extruded lengths for dirt streaks and malformations.
Positions fiber containers under discharge chute of each die hole, and replaces containers as they
are filled.
GOE: 06.02.18 STRENGTH: H GED: R2 M1 L1 SVP: 3 DLU: 77
Cleans spinnerettes that extrude synthetic fibers:
Disassembles $T3packs$T1 containing spinnerettes. Disassembles spinnerettes, washes them in
acid bath, and dries them with compressed air. Inspects holes in cleaned spinnerettes to detect
damage or wear. Disassembles, cleans, and reassembles $T3outflow quench sticks.$T1 May
reassemble cleaned spinnerettes, using wrench. May buff surface of spinnerettes, using power
buffer. May clean clogged spinnerette holes, using ultrasonic vibrator.
GOE: 06.04.39 STRENGTH: H GED: R2 M1 L1 SVP: 4 DLU: 77
557.684-014 JET WIPER (plastic-synth.)
Wipes jets (spinnerettes) through which filaments of
rayon are extruded and ties broken filaments together to facilitate uninterrupted production of
acetate rayon: Observes cellulose solution emerging from spinnerettes to detect interruption or
narrowing of stream, indicating blockage. Wipes surface of spinnerette with thumb to remove
clogged cellulose particles. Catches and ties together strands of rayon if breaks occur in filament.
Notifies SPINNER (plastic-synth.) to rethread filaments through machine after repairing breaks
or wiping jets. Reports permanently clogged, damaged, or worn jets to maintenance personnel.
GOE: 06.04.27 STRENGTH: L GED: R2 M1 L1 SVP: 2 DLU: 77
557.685-010 CORE EXTRUDER (elec. equip.)
Tends manually operated extrusion press and wirecutter
that extrudes and cuts paste (black mix) to form dry-cell battery cores: Loads press hopper with
paste and moves lever to start ram that forces paste through die of prescribed diameter onto
cutter. Pulls lever to lower wire cutter and cut extruded paste into segments (cores). Tilts cutter to
dump cores onto tray.
GOE: 06.04.10 STRENGTH: L GED: R2 M1 L1 SVP: 2 DLU: 77
557.685-014 EXTRUDER TENDER (rubber goods)
Tends machine that extrudes rubber compound to
produce strands for use in making elastic yarn: Adjusts valves to regulate and maintain specified
flow of rubber compound and size of extruded strand. Separates strands in acid bath with
tweezers and places strands on rollers leading to curing oven. Cleans and replaces nozzles. Fills
feed tank with liquid-rubber compound.
GOE: 06.04.13 STRENGTH: L GED: R2 M1 L1 SVP: 3 DLU: 77
557.685-018 PROCESSOR (plastic-synth.)
Tends processing (washing, bleaching, and drying)
section of machine that extrudes synthetic fiber filaments: Threads continuous filaments through
guides and around rollers that carry product through machine, apply washing and bleaching
solutions, and dry filaments prior to winding, twisting, or cutting into staple lengths. Observes
gauges and moves controls to start and regulate flow of washing and bleaching solutions, applied
to moving filament through openings in rollers, and to maintain temperature of drying rollers
according to plant standards. Repairs breaks in filaments by tying ends together. In nylon plants,
may set temperature of rolls that heat and stretch filaments to impart strength and fuse filaments
into tow. May doff bobbins of yarn at end of windup cycle and reset clock device that regulates
speed of filament travel according to diameter of bobbin.
GOE: 06.04.13 STRENGTH: L GED: R2 M1 L1 SVP: 3 DLU: 77
Tends unit of spinning machine that extrudes synthetic
filaments and passes filaments to draw (stretching) machine on floor below: Observes operation
of machine to ensure continuous flow of filaments through spinnerettes. Inserts filaments through
guides to facilitate drawing process on floor below. Presses buttons and turns valves to stop flow
of polymer to clean spinnerettes.
GOE: 06.04.13 STRENGTH: M GED: R2 M1 L1 SVP: 3 DLU: 77
Tends machine or machine section that extrudes rayon
filaments preparatory to washing, bleaching, drying, and winding resulting yarn onto bobbins or
cutting it into staple lengths: Grasps filaments as they are extruded into solidifying bath and
brings ends together to form single strand. Passes strand over glass rollers that carry it through
machine for subsequent processing. Ties strands together if breaks occur. May thread strands
through washing, bleaching, and drying rollers and attach them to takeup bobbins [PROCESSOR
(plastic-synth.)]. May gather filaments and throw them into glass funnel, mounted on machine,
with quantity of acid that carries filaments into revolving $T3spinning box.$T1 May remove and
replace bobbins as they become filled and reset clock device that controls speed of filament
travel according to diameter of bobbin. When repositioning glass funnels after doffing, is known
as Funnel Setter (plastic-synth.). May be designated according to type of spinning process as
Spinner, Box (plastic-synth.); Spinner, Continuous (plastic-synth.).
GOE: 06.04.13 STRENGTH: L GED: R2 M1 L1 SVP: 3 DLU: 77
Tends equipment to regulate flow of chemical-bath
solution to trough into which cellulose slurry is extruded, forming rayon filaments: Turns valves
to transfer slurry from storage tanks to trough containing spinnerettes, maintaining constant level
and flow according to gauge readings and plant specifications. May be designated Acid-Bath
Tender (plastic-synth.) when performing duties in plants manufacturing rayon by viscose
process.
GOE: 06.04.11 STRENGTH: L GED: R2 M1 L2 SVP: 4 DLU: 77
557.685-034 TAKE-UP OPERATOR (plastic-synth.)
Tends machine that applies finish to and winds up newly
extruded polyester fibers onto takeup bobbins: Turns valves on vacuum lines to activate
aspirators that break and suck up yarn ends during doffing process. Grasps yarn lines at each
bobbin position to gather and guide moving yarn to aspirator. Pushes filled bobbins of yarn away
from bobbin drive rollers on takeup machine to stop spinning takeup bobbins. Lifts filled
bobbins from machine and places bobbins on cart. Places empty bobbins on bobbin shafts of
takeup machine. Pushes bobbin shafts with empty bobbins next to spinning drive rollers to power
rotation of bobbins preparatory to takeup of yarn on bobbins. Pulls specified lines of yarn down
from aspirator over rollers on takeup unit that guide and advance newly extruded yarn and throws
yarn ends down against empty, spinning bobbins to takeup lines of bobbins. Separates yarn ends
along specified guide notches of machine to facilitate takeup of yarn on separate bobbins. Aligns
yarn taken up on bobbin, using wire brush.
GOE: 06.04.13 STRENGTH: M GED: R2 M1 L1 SVP: 3 DLU: 86
558 REACTING OCCUPATIONS, N.E.C.
This group includes occupations, not elsewhere
classified, concerned with producing a chemical change in components.
Supervises and coordinates activities of workers engaged
in operation of automatic chemical process equipment to produce granular phosphatic fertilizers
from raw chemicals, chemical products, and phosphate rock: Observes recording instruments,
panel lights, and other indicators, and listens for warning signals to verify conformity of process
conditions to plant standards. Reviews operating records and laboratory test reports to determine
specific process conditions and to diagnose malfunctions in equipment. Confers with technical
personnel to resolve conditions affecting safety, efficiency, and product quality. Directs workers
to manually regulate process equipment or to shut down equipment during emergency situations,
using telephone and radio communication systems. Trains workers in new job assignments.
Performs other duties as described under SUPERVISOR (any industry) Master Title.
GOE: 06.01.01 STRENGTH: L GED: R4 M3 L3 SVP: 8 DLU: 77
558.132-010 SUPERVISOR, CHEMICAL (plastic-synth.)
Supervises and coordinates activities of workers engaged
in converting woodpulp into viscose for use in manufacturing cellophane and rayon: Orders rolls
of pressed woodpulp transferred from storage to shredding room. Directs workers in moving
controls to regulate caustic treatment of pulp to form alkali cellulose. Sets conveyor speed for
specified aging of cellulose traveling through process chambers. Directs operation of equipment
that mixes and blends cellulose with chemicals to form viscose. Directs workers in moving
controls of valves and pumps to filter viscose and transfer viscose to storage. Trains workers in
operation of equipment. Performs other duties as described under SUPERVISOR (any industry)
Master Title.
GOE: 06.01.01 STRENGTH: L GED: R4 M3 L3 SVP: 7 DLU: 77
Supervises and coordinates activities of workers engaged
in producing phosphoric acid by reaction of sulfuric acid with phosphate rock in continuous
strong-acid process: Directs workers in changes in operating processes, work procedures, and
production rates according to production instructions. Observes workers to ensure compliance
with safety regulations. Prepares work orders for repair or maintenance of equipment. Trains new
employees or assigns trainees to experienced workers to learn job duties. Performs other duties
as described under SUPERVISOR (any industry) Master Title.
GOE: 06.04.01 STRENGTH: L GED: R4 M3 L4 SVP: 8 DLU: 77
Supervises and coordinates activities of workers engaged
in producing sulfuric acid from liquid sulfur by catalytic conversion and absorption methods.
Trains new employees in machine operation. Observes meters, charts, and gauges and reviews
operating records to verify specified process conditions and to diagnose malfunctions in
automatic operation. Performs other duties as described under SUPERVISOR (any industry)
Master Title.
GOE: 06.01.01 STRENGTH: L GED: R4 M3 L4 SVP: 8 DLU: 77
558.134-010 SUPERVISOR, BRINE (chemical)
Supervises and coordinates activities of workers engaged
in preparing solutions for use in producing chlorine and caustic soda by electrolysis. Performs
other duties as described under SUPERVISOR (any industry) Master Title.
GOE: 06.02.01 STRENGTH: M GED: R4 M3 L3 SVP: 7 DLU: 77
558.134-014 SUPERVISOR, CELL ROOM (chemical)
Supervises and coordinates activities of workers engaged
in producing chlorine, caustic soda, and caustic potash from brine by electrolysis. Performs other
duties as described under SUPERVISOR (any industry) Master Title.
GOE: 06.02.01 STRENGTH: M GED: R4 M3 L3 SVP: 7 DLU: 77
Supervises and coordinates activities of workers engaged
in maintenance of electrolytic cells and in drawing off hydrogen and chlorine generated by
electrolysis. Performs other duties as described under SUPERVISOR (any industry) Master Title.
GOE: 06.02.01 STRENGTH: M GED: R4 M3 L4 SVP: 7 DLU: 77
558.134-022 SUPERVISOR, HYDROCHLORIC AREA (chemical) alternate titles:
hydrochloric-manufacturing supervisor
Supervises and coordinates activities of workers engaged
in producing hydrogen chloride from decomposition of salt by sulfuric acid. Performs other
duties as described under SUPERVISOR (any industry) Master Title.
GOE: 06.02.01 STRENGTH: M GED: R4 M3 L3 SVP: 7 DLU: 77
558.260-010 CHIEF OPERATOR (chemical)
Controls chemical process equipment from instrumented
control board or other control station: Monitors recording instruments, flowmeters, panel lights,
and other indicators, and listens for warning signals to verify conformity of process conditions to
plant standards of safety and efficiency. Moves control settings or notifies CHEMICAL
OPERATOR (chemical) III 559.382-018 or other workers to make control adjustments on
equipment units affecting speed of chemical reactions and quality and yield of product, using
telephone or intercommunications system. Notifies maintenance, stationary-engineering, and
other auxiliary personnel to correct equipment malfunctions and adjust power, steam, water, or
air supply as indicated. Confers with technical and supervisory personnel to report or resolve
conditions affecting safety, efficiency, and product quality. Interprets chemical reactions visible
through sight glasses or on television monitor and reviews laboratory test reports to determine
need for process adjustments. Inspects equipment for potential and actual hazards, wear, leaks,
and other conditions requiring maintenance or shutdown. Records instrument readings, process
conditions, and other operating data in shift log, calculating material requirements or product
yield as necessary from standard formulas. Manually regulates or shuts down equipment during
emergency situations, as directed by supervisory personnel. May be designated according to
product produced as Chief Operator, Ammonium Sulfate (chemical); according to equipment
used as Chief Operator, Reformer (chemical); or according to chemical process as Chief
Operator, Purification And Reaction (chemical); Chief Operator, Synthesis (chemical).
GOE: 06.01.03 STRENGTH: L GED: R4 M3 L4 SVP: 7 DLU: 78
Controls catalytic converters to alter chemical
composition of liquid or gaseous substances, according to knowledge of process and sequence of
operations: Turns valves and starts pumps to admit feed stock to converter units at specified rate,
and to recycle unreacted products or byproducts to auxiliary equipment. Moves controls to
regulate temperatures, pressures, and reaction time, according to gauge readings, chart recorders,
and knowledge of processing requirements, to maintain efficient operation within specified
limits. Operates or tends auxiliary equipment, such as heaters, scrubbers, vapor compressors,
filters, distillation units, condensers, and humidifiers, to prepare or further process materials
entering or leaving converters, according to plant operating procedures. Directs activities of
CATALYTIC-CONVERTER-OPERATOR HELPER (chemical). Draws samples of materials
for laboratory analysis, or tests materials for specified characteristics, using standard gas-analysis
procedures and equipment. May introduce inert gas into converters to remove explosive vapors
or purge catalyst. May replace catalyst or tend equipment that regenerates catalyst for reuse. May
set semiautomatic control system that places equipment units in operating equilibrium, to attain
specified products and transfer them for further processing. May be designated according to
materials produced as Acetaldehyde-Converter Operator (chemical); Butadiene-Converter
Operator (chemical); Ethylbenzene-Converter Operator (chemical); Ethylene-Plant Operator
(chemical); or according to chemical reaction effected as Dehydrogenation-Converter Operator
(chemical); Ethylbenzene Hydrogenator (chemical); Ethylbenzene Oxidizer (chemical).
GOE: 06.02.11 STRENGTH: L GED: R3 M2 L2 SVP: 7 DLU: 77
558.362-014 CD-REACTOR OPERATOR, HEAD (chemical)
Controls catalytic reactor to convert monovinylacetylene
into unpolymerized constituent of neoprene rubber, according to knowledge of process and
sequence of operations: Opens valves to admit water and nitrogen to system, removing air to
prevent fires or explosions. Admits specified chemicals to system and observes their color to
detect presence of oxygen. Sets valves and controllers to maintain prescribed positive pressure in
system. Turns valves to circulate hydrogen chloride solution through gas scrubbers and to pass
vaporized monovinylacetylene through solution that removes impurities. Starts reaction system
or directs CD-REACTOR OPERATOR (chemical) to start system. Adjusts valves, flowmeters,
and automatic controllers to obtain specified equilibrium between gas feeds and to maintain
pressures and temperatures within specified limits. Determines adjustments required to avert or
correct emergency situations with minimum loss in time and yield. Starts condenser to remove
unreacted monovinylacetylene from product. Inspects equipment and arranges for cleaning and
repairs. Drains and steam-cleans processing equipment and lines during shutdowns, using steam
generator and hose. Draws samples of products for laboratory analysis. Records operational data
in log.
GOE: 06.02.11 STRENGTH: M GED: R3 M3 L3 SVP: 7 DLU: 77
Controls saturator tank and auxiliary equipment to
precipitate ammonium sulfate by reaction of ammonia with sulfuric acid: Turns valves to admit
sulfuric acid and liquid or gaseous ammonia to saturator until precipitation occurs, and to
regulate saturation of solution, using titration test to determine acidity of bath. Observes
temperature and pressure gauges to ascertain that process conditions meet plant standards, and
turns valves to maintain operating equilibrium within specified range. Notifies supervisor or
starts pumps to discharge precipitate onto drain table to settle out crystals, and pumps strained
liquor back to bath. Records gauge readings for operating log. May move controls to reheat gas
prior to saturation. May tend centrifuge to dry ammonium sulfate. May take samples of product
and constituents for laboratory analysis.
GOE: 06.02.11 STRENGTH: L GED: R3 M2 L2 SVP: 5 DLU: 77
558.382-010 ACID EXTRACTOR (steel & rel.)
Controls equipment, such as washers, rectifiers, acid pots,
and mixing tanks arranged in series to recover tar acids from coal-tar oils: Starts pumps to
circulate oil through equipment, and opens valves at various stages to treat oil with chemicals,
carbon dioxide, and steam, according to specified instrument readings. Performs routine tests at
different processing stages to determine effectiveness of treatment. Samples products for
laboratory analysis, and interprets results of analyses to make adjustments in processing
operations and to control quality and quantity of production. Inspects equipment for operating
efficiency, lubricates equipment, and makes minor repairs and adjustments.
GOE: 06.02.11 STRENGTH: L GED: R3 M2 L3 SVP: 5 DLU: 77
Controls converter and auxiliary equipment that combine
hydrogen and nitrogen to produce anhydrous ammonia: Lights burner and starts pumps,
compressors, scrubbers, and absorption units. Moves controls on panelboard to regulate
temperatures of solutions and opens valves to admit heated and purified air and hydrogen into
combustion chamber of burner, where nitrogen driven from air combines with hydrogen to form
ammonia. Reads instruments, such as thermometers, pressure gauges, and potentiometers. Makes
control adjustments according to operating instructions and charts. Pumps fresh solutions into
scrubbing and $T3absorption towers$T1 when readings indicate excessive alkalinity. Records
operational data in logbook. May compute percentage of hydrogen and ammonia in burner gases,
using standard test procedure.
GOE: 06.02.11 STRENGTH: M GED: R3 M3 L3 SVP: 5 DLU: 77
Controls equipment to process green liquor (soda ash
solution) and lime into caustic liquor used in cooking woodpulp: Starts pumps and adjusts valves
to control flow of water and lime into tank or revolving drum and over screens to remove lumps
to make lime slurry of specified density. Adjusts valves to control flow of lime slurry and green
liquor into reaction tanks in specified proportions and opens steam valve to heat reaction tank to
specified temperature to make caustic cooking liquor. Adjusts controls to pump cooking liquor to
settling tank and makes titration tests to determine extent of settling of lime sludge. Turns valves
to pump clear liquor to storage tank and lime sludge to sludge tank. May test green liquor and
calculate quantity of lime slurry additive. May make titration test to determine concentration of
cooking liquor.
GOE: 06.02.11 STRENGTH: L GED: R3 M2 L1 SVP: 4 DLU: 77
Operates equipment to control chemical reaction of soda
ash and milk of lime to make caustic soda: Opens valves and starts pumps to fill dissolving tank
with specified amounts of soda ash and milk of lime. Starts mixer in tank to agitate materials and
dissolve solids. Draws sample of mixture from tank and measures its gravity with hydrometer.
Opens water valve to dilute mixture and obtain specified concentrations according to type of
product. Turns valves and rheostats to adjust feeding of solution to reactor tank. Periodically
takes samples of reacting liquor and titrates samples with normal acid to determine concentration
of caustic soda being formed. Conducts similar tests and titrations to determine salt content and
concentration of various liquors. Clears stopped pipelines and repairs equipment, using
handtools.
GOE: 06.02.11 STRENGTH: M GED: R3 M2 L2 SVP: 5 DLU: 77
558.382-026 CELL TENDER (chemical) alternate titles: cell attendant; unit tender
Controls electrolytic cells to produce caustic soda,
chlorine, or hydrogen to specified standards from brine (sodium chloride) solution: Regulates
brine flow to cells, according to power input and strength of electrolyte. Observes flow through
sight glasses; reads gauges, chart recorders, and manometer; and moves controls to regulate level
of cell liquor, brine flow, cell pressure, current, and temperatures, within efficient operating
limits. Turns valves and starts pumps to maintain specified back pressure on hydrogen and
vacuum on chlorine. Observes gauges, turns valves, and starts pumps to tend auxiliary
equipment, such as hydrogen scrubbers, water sprayers, condensers, and driers to purify, recover,
or further process hydrogen, chlorine, and caustic liquor. Inspects cells, contact bars, pumps,
turbines, and hydrogen and caustic outlets to detect overheating, stoppages, and leaks. Opens
valves to flush lines and to draw sample of cell liquor. Measures specific gravity of liquor to
facilitate process controls using hydrometer. Records data, such as temperatures, flow rate,
operating time, and repairs made or needed. May replace glass and rubber tubing, nipples, and
assemblies, and clean cell orifices and vents. When operating auxiliary equipment only to
recover chlorine or hydrogen gas, may be designated Chlorine-Cell Tender (chemical);
Hydrogen-Cell Tender (chemical).
GOE: 06.02.11 STRENGTH: L GED: R3 M2 L3 SVP: 5 DLU: 77
558.382-030 CHLORINATOR OPERATOR (chemical)
Controls equipment in which chemicals or other materials
are chlorinated by reaction with chlorine gas: Pumps specified amounts of chemicals to
chlorinator. Reads flowmeter and opens valves to regulate flow of chlorine and rate of
chlorination reaction. Reads temperature gauges and turns steam and coolant valves to maintain
reaction within specified temperature range. Tests sample of product for specific gravity and for
boiling or freezing point, using hydrometer and thermometer. Observes color of product to
determine when chlorination is completed. Records operating data, such as temperature and
pressure in chlorinator and related equipment. May operate auxiliary units, such as vaporizer,
filters, stills, and stripping columns. May be designated according to product formed as Bleach
Chlorinator (chemical); Sulfur-Chloride Operator (chemical).
GOE: 06.02.11 STRENGTH: L GED: R3 M2 L2 SVP: 5 DLU: 77
Controls equipment to produce cuprous chloride, used as
catalytic agent in chemical processes: Weighs or measures specified amounts of cuprous powder
and other ingredients, and dumps materials into tank. Starts tank agitator and moves controls to
heat and agitate ingredients to effect prescribed reaction, and to transfer product to auxiliary
equipment for further processing. Tests filtrate for impurities, using standard chemical test
equipment and procedure, and draws samples of chloride for laboratory analysis. Operates
hydrogen-chloride coolers, condensers, and absorbers [ABSORPTION OPERATOR (chemical)]
to produce and supply hydrochloric acid to reactor units, using hydrometer to verify that specific
gravity is maintained within prescribed limits. Compiles inventory reports of materials used and
consumed. May shovel chloride from filter tank into containers for storage or transfer to other
processing areas.
GOE: 06.02.11 STRENGTH: M GED: R3 M2 L2 SVP: 4 DLU: 77
558.382-038 KETTLE OPERATOR I (chemical)
Controls heated reaction kettles to process liquid and
solid materials into specified chemical products: Turns valves or starts automatic metering
pumps that admit specified quantity of liquid materials into kettle. Weighs and dumps or scoops
prescribed solid, granular, or powdered ingredients into kettle, according to production sheet.
Starts agitator to mix materials for specified time or stirs mixture with paddle. Observes gauges
and recording instruments, and adjusts valves and controls to maintain temperature, vacuum
pressure, and speed of reaction in kettle within prescribed limits. Draws sample of product for
laboratory analysis. May test product for specified characteristics, such as acidity and
composition, using standard litmus paper test and pH meter. May observe reaction through
porthole in equipment and adjust controls to regulate speed or degree of reaction, according to
knowledge of process. May tend auxiliary equipment, such as quench tanks and filter presses, to
process resulting product or ingredients used to sustain reaction. May be designated by degree of
pressure maintained in kettle as High-Pressure-Kettle Operator (chemical); Low-Pressure-Kettle
Operator (chemical).
GOE: 06.02.11 STRENGTH: M GED: R3 M2 L2 SVP: 5 DLU: 77
Controls automatic or semiautomatic equipment to
polymerize solutions in reaction kettles to produce synthetic-rubber polymers, such as silicone or
neoprene, following written specifications: Weighs solid or liquid chemical additives, using
balance or floor scale. Dumps ingredients into kettle, using overhead hoist. Turns valves to load
kettles with monomer, catalyst, and modifier solutions. Starts agitator and turns steam or water
valves to activate and control polymerization. Observes and records dial and gauge readings, and
draws and tests samples to determine degree of completion of polymerization. Turns valves to
release vacuum and to cool batch to terminate polymerization. Starts pumps to transfer
nonreacted materials to rerun tank. Flushes kettle with water and changes filter socks, or cleans
kettle, using brushes and cleaning solvents. May remove reactor cover and manually dump
catalyst in reactor.
GOE: 06.02.13 STRENGTH: L GED: R3 M2 L2 SVP: 5 DLU: 77
558.382-046 NITRATOR OPERATOR (chemical)
Controls equipment to combine and process acids and
specified chemical ingredients to produce explosives, such as nitroglycerin, tetryl, or TNT:
Admits specified ingredients, such as mixed acids and toluene compounds, to metering or
weighing tanks, and regulates feed to nitrator in specified timing and sequence. Starts agitator to
mix ingredients for prescribed time or until settling occurs. Observes temperature and pressure
gauges and turns steam and coolant valves to regulate reaction within specified limits to prevent
explosion. Transfers batch or specified components to storage tanks or other processing
equipment after prescribed time or when visual inspection indicates reaction is completed.
Records gauge readings, nitration time, and ingredients consumed in shift log. May be
designated according to explosive produced as Nitroglycerin-Nitrator Operator, Batch
(chemical); Tetryl-Nitrator Operator (chemical); or according to intermediate materials nitrated
as Binitrotoluene Operator (chemical); Mononitrotoluene Operator (chemical). May control
continuous-process equipment and be designated Biazzi-Nitrator Operator (chemical).
GOE: 06.02.11 STRENGTH: L GED: R3 M2 L2 SVP: 6 DLU: 77
Controls reactor vessels to polymerize raw resin materials
to form phenolic, acrylic, or polyester resins: Pumps specified amount of raw material into
calibrated tank according to formula and transfers materials into reactor. Starts mixers and pumps
reagents and catalysts into reactor. Starts circulation and vacuum pumps. Adjusts valves to
regulate flow of preheated or cooled fluid around jacket of reactor and to start and regulate
polymerization reaction. Adjusts valves to regulate pressure and temperature in reactor. Tests
viscosity and pH of resins to determine length of polymerization time, using pH meters and
viscosimeters. Turns valves to discharge processed materials from kettles into cooling pans.
Records processing time, pressure, temperature, and test results in log; and writes daily reports
on amounts of raw materials used and finished product barreled or stored. May dump compounds
into polymerized resins to thicken product. May pump polymerized resin from storage tanks to
tank trucks or cars for shipment. May cast liquid plastics in molds. May analyze sample of
plastics materials to determine clarity, acidity, fusibility, or brittleness, using slide rule, torsion
balance, and other testing equipment.
GOE: 06.02.13 STRENGTH: M GED: R4 M3 L3 SVP: 7 DLU: 77
558.382-054 SODA-COLUMN OPERATOR (chemical)
Controls carbonating tower to precipitate sodium
bicarbonate crystals from ammoniated brine in Solvay process production of soda ash: Observes
temperature, pressure, and flowmeter gauges and adjusts valves and controls to admit ammonia
and brine to converter and to regulate process conditions, according to plant procedure. Tests
concentration of product, using standard test equipment and procedure, and adjusts temperature
in tower to produce sodium bicarbonate crystals of specified size and concentration for efficient
filtering, washing, and drying of product, to form soda ash. Flushes feedlines, using steam hose;
and replaces gaskets, using handtools. May tend stills and related equipment to produce ammonia
for absorption into brine.
GOE: 06.02.11 STRENGTH: L GED: R3 M2 L2 SVP: 4 DLU: 77
558.382-058 WET-MIX OPERATOR (chemical)
Controls premixer and reaction vessels to produce
orthophosphate liquor by reaction of phosphoric acid with soda ash: Sets timing device on weigh
tank to effect prescribed feed rate of soda ash to premixer. Starts premixer, pumps, exhaust fans,
screw conveyors, and bucket elevator in required sequence. Observes flowmeters and turns
valves to regulate flow of phosphoric acid and water to premixer as specified. Swings discharge
spout over reaction vessel, and starts agitator in vessel to admit and mix product. Turns valve to
regulate flow of steam through vessel heating coils to attain reaction, observing thermometer to
verify required temperature. Lowers dipstick into tank to obtain sample for laboratory testing.
Turns valves to add measured amounts of chemicals, as indicated by laboratory reports, to
regulate chemical properties of mixture to specifications. Turns valves and starts pump to
transfer finished mixture to spray drier feed tanks.
GOE: 06.02.11 STRENGTH: L GED: R3 M2 L2 SVP: 4 DLU: 77
558.385-010 CD-REACTOR OPERATOR (chemical)
Tends catalytic reactor that converts monovinylacetylene
into unpolymerized constituent of neoprene rubber as directed by CD-REACTOR OPERATOR,
HEAD (chemical): Moves equipment controls to start and shut down reactor components in
sequence as directed. Gauges catalyst level in reactors and patrols area to record instrument
readings in operating log. Collects and titrates samples of catalyst to facilitate process
adjustments and production of product meeting specified standards. Starts pumps to discharge
and recharge catalyst in reactors and calcium chloride in driers and scrubber towers. Drains and
flushes process lines and equipment, using water, steam hoses, and nitrogen-sweeping
equipment. Inventories supplies received and consumed.
GOE: 06.02.11 STRENGTH: M GED: R3 M2 L2 SVP: 4 DLU: 77
558.385-014 TOWER HELPER (chemical)
Tends equipment units that generate hydrogen chloride to
facilitate process control by ABSORPTION OPERATOR (chemical): Installs chlorine cylinders
in chlorinating unit. Starts equipment and pumps to mix metered amount of chlorine with
hydrochloric acid from absorption system and to transfer chlorinated acid to feed tanks of
stripper still. Draws samples of product for laboratory analysis, or tests sample for specific
gravity, acidity, and composition to maintain product specifications, using such instruments as
hydrometer and pH meter. Maintains records of tank levels, gauge and instrument readings, and
inventory of materials used and produced.
GOE: 06.04.11 STRENGTH: M GED: R3 M2 L2 SVP: 3 DLU: 77
558.482-010 FURNACE OPERATOR (chemical)
Controls continuous-process furnace and related
equipment to decompose salt cake, forming hydrogen chloride: Starts salt conveyors or shovels
salt cake into furnace; turns valves to fill furnace reaction pot with sulfuric acid from supply
tank; and sets burners, dampers, and vents to fire furnace to specified temperature and effect
liberation of hydrogen chloride. Computes salt and acid requirements, using instrument readings
and formulas, and sets feed scales and timers for continuous operation or manually regulates feed
and temperature controls to maintain production in conformity with plant standards. Removes
scale from furnace walls and agitates salt cake to maintain efficient production, using scrapers
and rake. Starts or regulates speed of salt-removal device to prepare furnace for new charge.
Maintains log of shift production, gauge readings, and equipment failures.
GOE: 06.02.11 STRENGTH: M GED: R3 M3 L2 SVP: 4 DLU: 77
