Section R. 408.41261 - Wire ropeRule 1261.
(1) A wire rope shall be inspected for defects by a competent person before each work shift and after every occurrence that could affect a ropes integrity. A rope shall be replaced if any of the following conditions exist: (a) Physical damage that impairs the function and strength of the rope.(b) Kinks that might impair the tracking or wrapping of rope around the drum or sheaves.(c) Six randomly distributed broken wires in 1 rope lay or 3 broken wires in 1 strand in 1 rope lay.(d) Abrasion, corrosion, scrubbing, flattening, or peening that has caused the loss of more than 1/3 of the original diameter of the outside wires.(e) Heat damage caused by a torch or any damage caused by contact with electrical wires.(f) Evidence that the secondary brake has been activated during an overspeed condition and has engaged the suspension rope.(2) Wire rope that is bent to form an eye over a bolt or rod which has a diameter of less than 4 times the rope diameter shall be equipped with a metal thimble.(3) Swaged attachments or spliced eyes on wire suspension ropes shall not be used unless they are made by the wire rope manufacturer or a qualified person.(4) If wire rope clips are used on suspension scaffolds, then all of the following provisions apply: (a) Clips shall be installed according to the manufacturers recommendations.(b) Clips shall be retightened to the manufacturers recommendations after the initial loading.(c) Clips shall be inspected and retightened to the manufacturers recommendations at the start of each work shift.(d) U-bolt clips shall not be used at the point of suspension for any scaffold hoist.(e) If U-bolt clips are used, then the U-bolt shall be placed over the dead end of the rope and the saddle shall be placed over the live end of the rope.(5) Wire rope shall not come in contact with sharp edges.Mich. Admin. Code R. 408.41261
1981 AACS; 1990 AACS; 1998-2000 AACS; 2013 AACS; 2016 MR 16, Eff. 8/17/2016