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. PERSONNEL HOISTS AND ELEVATORS - ADDITIONAL REQUIREMENTS