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Ohio State University Extension
To be aware of the dangers of not using PTO shielding.
Use PTO shields on implements for demonstrating the points in this training
lesson. Point out the shields on a tractor with power takeoff. Ask workers to give examples of
mishaps that can occur when shielding is not in place.
Death or injury can result from becoming entangled with a PTO. In order to prevent injury or death,
proper shielding must be in place. Replace damaged or missing shield immediately. If there are
questions about the machinery, check with employer or equipment dealer.
Using Caution When Working with PTO Equipment:
- Disengaging the PTO before getting off a tractor reduces the chance of slipping or falling
onto a rotating shaft or getting caught in a moving part.
- Integral shields should move freely. When the power is off, the shield should easily
rotate by hand. Repair damaged shield or bearings immediately.
- Keep the tractor PTO master shield in place.
- The equipment operator should wear close-fitting clothes and slip-resistant footwear. Rotating
parts catch loose clothing easily.
- Never step across a rotating power shaft. Forage blowers, grinders, and mixers must run
at full speed while the operator is working in their vicinity, so it is crucial to always walk
around the revolving shaft.
- Never allow children around the equipment or work area.
- Keep all shields in place at all times except when servicing.
- Replace all shields immediately after servicing a PTO shaft.
- Never step over a working PTO.
- Always disengage the PTO before getting off a tractor.
- Wear close fitting clothing when working around a PTO.
- Keep children away from a PTO.
True or False
1. Wear loose fitting clothing when working around PTOs. |
T |
F |
2. Allow children to play around PTOs. |
T |
F |
3. Keep any shielding on PTO's in place or replace immediately after servicing. |
T |
F |
4. Stepping over a rotating power shaft is acceptable. |
T |
F |
5. Always disengage the PTO before getting off a tractor. |
T |
F |
Answer Key
1. F, 2. F, 3. T, 4. F, 5. T
Disclaimer and Reproduction Information: Information in NASD does not represent NIOSH policy. Information included in NASD appears by permission of the author and/or copyright holder. More
NASD Review: 06/2004
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