Section R. 408.11424 - Hinged sectionsRule 1424.
(1) A manually operated hinged section for employee passage through a gravity roller conveyor, chute, belt, or other type of conveyor that requires more than a 40-pound lifting effort to operate shall be counterbalanced.(2) A power operated section for employee passage shall be provided with a mechanical safety device which shall prevent the section from falling in case of power failure.(3) A power conveyor having a hinged section used for the purpose of clearing a passageway shall be designed so that the section cannot be raised while the conveyor is in operation or the material being conveyed shall be stopped when the section is raised.Mich. Admin. Code R. 408.11424