Section R. 408.42407 - Material handlingRule 2407.
(1) The rope pulley shall be secured to the thrustout or hoisting jack in a manner to support not less than 3 times the weight to be lifted. The pulley groove shall be the same size as the rope.(2) Where a structural steel or wood beam thrustout is used, it shall be designed and installed in a manner to support not less than 3 times the weight being lifted and prevent tipping and twisting. A wood thrustout shall be set on edge.(3) Where a counterweight is used, it shall be contained or secured in place to prevent slippage.(4) Where a manual or powered hoisting jack is used, it shall be designed and installed in such a manner as to support not less than 3 times the load to be lifted.(5) An employee shall not stand or walk under material being hoisted.Mich. Admin. Code R. 408.42407
1979 AC; 1982 AACS; 1996 AACS; 2013 AACS