Section R. 408.14951 - Sling use; rated capacity; diameter of curvature; safe operating temperaturesRule 4951.
(1) A fiber rope sling made from conventional 3 strand construction fiber rope shall not be used with a load in excess of the rated capacities.(2) A fiber rope sling shall have a diameter of curvature meeting not less than the minimums prescribed in figures 4 and 5.(3) A sling shall be used only in accordance with the manufacturers recommendations.(4) A natural or synthetic fiber rope sling, except for a wet frozen sling, may be used in a temperature range from minus 20 degrees Fahrenheit to plus 180 degrees Fahrenheit without decreasing the working load limit. For operations outside this temperature range and for wet frozen slings, the sling manufacturer's recommendations shall be followed.(5) Employers shall use natural and synthetic fiber-rope slings that have permanently affixed and legible identification markings stating the rated capacity for the type of hitch used and the angle upon which it is based, type of fiber material, and the number of legs if more than 1.Mich. Admin. Code R. 408.14951