Wash. Admin. Code § 296-870-70035 - Hoisting machines
(1) You must make sure suspended or
supported equipment is raised or lowered only by a hoisting
machine.
(2) You must
make sure each hoisting machine is all of the following:
(a) Powered only by air, electric,
or hydraulic sources;
(b)
Capable of raising or lowering one hundred twenty-five percent of the
rated load of the hoist;
(c) Able to arrest any overspeed
descent of the load.
(3) You must make sure the stall
load of any hoist motor is not more than three times its rated
load.
(4) You must make
sure any component of a hoisting machine that needs to be lubricated
for protection or proper functioning has means provided to apply the
lubricant.
(5) You must
make sure winding drums, traction drums and sheaves, and directional
sheaves used in conjunction with hoisting machines are compatible
with, and sized for, the wire rope used.
(6) You must make sure each winding
drum:
(a) Has a positive means to
attach the wire rope to the drum;
and
(b) The attachment can develop at
least four times the rated load of the hoist.
(7) You must make sure each
hoisting machine is provided with a primary brake that is all of the
following:
(a) Capable of stopping
and holding not less than one hundred twenty-five percent of the
lifting capacity of the hoist;
(b) Directly connected to the drive
train of the hoisting machine without using belts, chains, clutches,
or set screw type devices;
(c) Automatically set when power to
the prime mover is interrupted.
(8) You must make sure each
hoisting machine is provided with at least one independent secondary
brake that is all of the following:
(a) Capable of stopping and holding
not less than one hundred twenty-five percent of the lifting capacity
of the hoist;
(b) An
automatic emergency type of brake that, if; actuated during each
stopping cycle, does not engage before the hoist is stopped by the
primary brake;
(c) Able
to stop and hold the platform within a vertical distance of
twenty-four inches (609.6 mm) after the brake is actuated.
Reference: |
Moving parts of a hoisting machine need to be enclosed or guarded as required by another chapter, Machine safety, chapter 296-806 WAC. |
Notes
Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 47.17.060. 06-19-075, § 296-870-70035, filed 9/19/06, effective 1/1/07.
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