Section R. 408.16337 - Boom cranesRule 6337.
(1) A boom crane shall bear a sign or tag in the cab and on the outside showing the maximum rated capacity in pounds or tons as related to the boom angle. The rated capacity shall not be exceeded.(2) The designed safety factor for all boom crane parts shall be not less than 5.(3) A boom crane shall be equipped with a warning device which shall be used during lifting and moving of a load if an employee other than the crane crew is in the loading or unloading path.(4) A boom crane load shall not pass over the head of any employee.(5) Only 1 member of a boom crane crew may give signals to the crane operator. The signals shall conform to Table 2 'Hand Signals for Boom-Type Cranes.'(6) A crane boom shall not be operated within 10 feet of overhead power lines unless the power lines have been deenergized. The boom shall be painted a bright yellow from, and including, the head sheave to a point 6 feet down the boom towards the cab.Mich. Admin. Code R. 408.16337