OSHA INSTRUCTION STD 1-12.20 OCTOBER 30,1978
OSHA PROGRAM DIRECTIVE #100-98
TO: REGIONAL ADMINISTRATORS/OSHA
THRU: DONALD E. MACKENZIE Field Coordinator
Subject: 29 CFR 1910.217(b)(3)(i), Mechanical Power Presses Single Stroke
Mechanism Requirements
1. Purpose
The purpose of this directive is to provide an interpretation of 29
CFR 1910.217(b)(3)(i) and guidance for field personnel for the requirement of
single stroke mechanisms on full revolution type mechanical power
presses.
2. Documentation-Affected
This directive supersedes OSHA Field Information Memorandum #77-3
dated February 9, 1977.
3. Background
Complaints and variance applications have been received concerning
the requirement for single-stroke mechanisms. This requirement was
questioned when full revolution type mechanical power present were used for
production type work, automatically fed on continuous operation and the
points of operation were protected by a fixed barrier guard. The requirement
for the single stroke mechanism was not intended to apply to the preceding
type of operation since there is no operator exposure to point of operation
hazards when the danger zone is fully enclosed. This exception will be
included in a change to the standard, which is presently under
review.
4. Action
When encountering full revolution type mechanical power process that
are being operated on continuous mode only, feeding and ejection are
accomplished by an automatic system, the points of operation are fully
enclosed by a fixed barrier guard, and no single stroke mechanism is
required, it shall be considered de miminis.
OSHA INSTRUCTION STD 1-12.20 OCTOBER 30, 1978
5. Effective Date
This directive is effective immediately and will remain in effect
until rescinded or canceled by standards changes.
Richard P. Wilson Deputy Director, Federal Compliance and State Programs
DISTRIBUTION:
A-1 E-1 B-2 HEW-1 C-1 NIOSH Regional Directors-1 D-4&5
NACOSH-1 Training Institute-4
(Originator: OCCS)
|