Mich. Admin. Code R. 408.10575 - Hoisting machines
Rule 575.
(1)
The raising and lowering of suspended or supported equipment shall be performed
only by a hoisting machine.
(2)
Each hoisting machine shall be capable of arresting any overspeed descent of
the load.
(3) Each hoisting machine
shall be powered only by air, electric, or hydraulic sources.
(4) Each hoisting machine shall be capable of
raising or lowering 125% of the rated load of the hoist.
(5) Moving parts of a hoisting machine shall
be enclosed or guarded in compliance with the provisions of General Industry
Safety Standard Part 7 "Guards for Power Transmission," as referenced in
R
408.10509.
(6) Flammable liquids shall not be carried on
the working platform.
(7) Winding
drums, traction drums, and sheaves and directional sheaves that are used in
conjunction with hoisting machines shall be sized for the wire rope that is
used.
(8) Each winding drum shall
be provided with a positive means of attaching the wire rope to the drum. The
attachment shall be capable of developing not less than 4 times the rated load
of the hoist.
(9) Each hoisting
machine shall be provided with a primary brake and at least 1 independent
secondary brake, each of which shall be capable of stopping and holding not
less than 125% of the lifting capacity of the hoist.
(10) The primary brake shall be directly
connected to the drivetrain of the hoisting machine and shall not be connected
through belts, chains, clutches, or set screw-type devices. The brake shall
automatically set when power to the prime mover is interrupted.
(11) The secondary brake shall be an
automatic emergency type of brake that, if actuated during each stopping cycle,
shall not engage before the hoist is stopped by the primary brake and shall
stop and hold the platform within a vertical distance of 24 inches (609.6
mm).
(12) Any component of a
hoisting machine that requires lubrication for its protection and proper
functioning shall be provided with a means for that lubrication to be
applied.
Notes
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