Mich. Admin. Code R. 408.41550 - Material hoist requirements
Rule 1550.
(1)
The material hoist requirements contained in this rule are in addition to the
general requirements contained in R 408.41540 to R 408.41543.
(2) An employer shall ensure that operating
rules are established and posted at the operator's station of the hoist. Such
rules shall include signal system and allowable line speed for various loads.
Rules and notices shall be posted on the car frame or crosshead in a
conspicuous location, including the statement "No Riders Allowed."
(3) A person shall not be allowed to ride on
a material hoist, except for inspection and maintenance.
(4) An overhead protective covering of 2-inch
planking or other solid material of equivalent strength shall be provided on
the top of every material hoist car.
(5) All entrances of the hoistway shall be
protected by substantial gates or bars that shall guard the full width of the
landing entrance from floor to ceiling. All hoistway entrance bars and gates
shall be painted with diagonal contrasting colors, such as black and yellow
stripes.
(6) Gates or bars
protecting the entrance to a hoistway shall be equipped with a latching device
and be not more than 4 inches from the edge of the landing sill. A gate shall
extend a minimum of 6 feet 8 inches above the floor.
(7) An operator's station of a hoisting
machine shall have overhead protection equivalent to tight planking that is not
less than 2 inches thick. The support for the overhead protection shall be of
equal strength.
(8) A hoist tower
may be used with or without enclosures on all sides. However, whichever
alternative is chosen, all of the following applicable conditions shall be met:
(a) When a hoist tower is enclosed, it shall
be enclosed on all sides for its entire height with a screen enclosure of not
more than 1/2-inch mesh of no. 18 U.S. gauge wire or equivalent, except for a
landing access.
(b) When a hoist
tower is not enclosed, the hoist platform, car, or cab shall be totally
enclosed or caged on all sides for the full height between the floor and the
overhead protective covering with 1/2-inch mesh of no. 14 U.S. gauge wire or
equivalent. The hoist car enclosure shall include the required gates for
loading and unloading. An 8-foot high enclosure shall be provided on the unused
sides of the hoist tower at ground level.
(9) Car arresting devices shall be installed
to function in case of rope failure and shall be tested at 90-day
intervals.
(10) All material hoist
towers shall be designed by a licensed professional engineer.
(11) All material hoists shall conform to the
requirements of ANSI/ASSE A10.5 "Safety Requirements for Material Hoists," 1992
edition, as adopted in R 408.41505.
Notes
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