SECTION 9 — METHODS OF SAFEGUARDING MACHINES
SSC-500 Hydraulic Press Solid-State Control
Rockford Systems, LLC
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Restraint (Holdout) on Power Presses
OSHA 1910.217 Section (c)(3)(vi)
Restraint or Holdout
(Ref. MPPS, page 18)
Type “A” or “B” Gate on Power Presses
OSHA 1910.217 Section (c)(3)(ii)(c)
Gate or Movable Barrier Device
(Ref. MPPS, page 18)
Auxiliary Safeguarding on Power Presses
Auxiliary safeguarding is additional protection from injuries for all personnel in the machine area. It is used in conjunction with primary safeguarding
devices. Auxiliary safeguarding also involves the guarding of other components or hazardous openings on machines.
Auxiliary safeguards include such items as point-of-operation side end barriers when light curtains are used, pressure sensitive floor mats,
workpiece tables or horizontal light curtains. Light curtains can be used horizontally to prevent an operator or other persons from standing between
the vertical plane of light and the point-of-operation hazard.
Danger signs, used for warning, can be mounted on the machine in a position that is readily visible to the operator, setup person or other personnel.
Hand tools can be used as auxiliary safeguarding. They are often used when feeding and retrieving small pieceparts. Hand tools themselves are
NOT a point-of-operation safeguarding device.
OSHA 1910.217 Section (c) (Ref. MPPS, page 13)
(4) Hand feeding tools. Hand feeding tools are intended
for placing and removing material in and from the press.
Hand feeding tools are not a point-of-operation guard
or protection device and shall not be used in lieu of the
guards or devices required.
Other Safety Considerations
Other areas of machine safety must be considered in order to comply to the OSHA Regulations and ANSI Standards as we know them. This
includes, but is not limited to, items such as a main power disconnect switch, which must be provided for each machine, and a magnetic type
motor starter for the main drive motor and slide adjust motor. Mechanical power-transmission apparatus of the machine, such as rotating flywheels,
gears, sprockets, chains, and shafts, must be covered in accordance with OSHA 1910.219. As with all machinery, best safety practices must be a
continuing program. The operator, die setter and all personnel must be fully trained and instructed on all safety procedures and have full knowledge
of the safeguarding device being used.
When using the devices described, for point-of-operation protection, sides and rear of hazardous area must be guarded to protect the operator and
other employees in the machine area (OSHA Section 1910.212).
Note: The preceding point-of-operation safeguarding options are explained in OSHA’s 1910.217 Standard for Mechanical
Power Presses, ANSI’s B11.2 booklet entitled “Safety Requirements for the Construction, Care and Use of Hydraulic
Power Presses.” Also see Rockford Systems’ booklet entitled “Mechanical Power Press Safety” (MPPS).
Hand Feeding Tool used for Feeding Part
s
