(a) For drum end attachment, wire rope shall be attached--
(1) Securely by clips after making one full turn around
the drum spoke;
(2) Securely by clips after making one full turn around
the shaft, if the drum is fixed to the shaft; or
(3) By properly assembled anchor bolts, clamps, or wedges,
provided that the attachment is a design feature of the hoist drum. Design
feature means either the manufacturer's original design or a design approved
by a registered professional engineer.
(b) A minimum of three full turns of wire rope shall be on the drum
when the rope is extended to its maximum working length.
U.S. Department of Labor | Mine Safety and Health Administration (MSHA) | 1100 Wilson Boulevard, 21st Floor | Arlington, VA 22209-3939 www.msha.gov | Telephone: (202) 693-9400 | Fax-on-demand: (202) 693-9401