Ropes, cables, slings, and chains shall be used in accordance with safe use practices recommended by the manufacturer or within safe limits recommended by the equipment manufacturer when used in conjunction with it.
Installation, inspection, maintenance, repair, and testing of ropes, cables, slings, and chains shall be done only by persons qualified to do such work.
Proper storage shall be provided for slings while not in use.
Chains used in load carrying service shall be inspected before initial use and weekly thereafter.
Chain shall be normalized or annealed periodically as recommended by the manufacturer.
If at any time any 3-foot length of chain is found to have stretched one-third the length of a link it shall be discarded.
Bolts or nails shall not be placed between two links to shorten or join chains.
Broken chains shall not be spliced by inserting a bolt between two links with the head of the bolt and nut sustaining the load, or by passing one link through another and inserting a bolt or nail to hold it.
Wire rope or cable shall be inspected when installed and once each week thereafter, when in use. It shall be removed from hoisting or load-carrying service when kinked or when one of the following conditions exists:
When three broken wires are found in one lay of 6 by 6 wire rope.
When six broken wires are found in one lay of 6 by 19 wire rope.
When nine broken wires are found in one lay of 6 by 37 wire rope.
When eight broken wires are found in one lay of 8 by 19 wire rope.
When marked corrosion appears.
Wire rope of a type not described herein shall be removed from service when 4 percent of the total number of wires composing such rope are found to be broken in one lay.
Wire rope removed from service due to defects shall be plainly marked or identified as being unfit for further use on cranes, hoists, and other load-carrying devices.
The ratio between the rope diameter and the drum, block, sheave, or pulley tread diameter shall be such that the rope will adjust itself to the bend without excessive wear, deformation, or injury. In no case shall the safe value of drums, blocks, sheaves, or pulleys be reduced when replacing such items unless compensating changes are made for rope used and for safe loading limits.
Drums, sheaves, and pulleys shall be smooth and free from surface defects liable to injure rope. Drums, sheaves, or pulleys having eccentric bores or cracked hubs, spokes, or flanges shall be removed from service.
Connections, fittings, fastenings, and other parts used in connection with ropes and cables shall be of good quality and of proper size and strength, and shall be installed in accordance with the manufacturer's recommendations.
Socketing, splicing, and seizing of cables shall be performed only by qualified persons.
All eye splices shall be made in an approved manner and wire rope thimbles of proper size shall be fitted in the eye, except that in slings the use of thimbles shall be optional.
Wire rope clips attached with U-bolts shall have these bolts on the dead or short end of the rope. The U-bolt nuts shall be retightened immediately after initial load carrying use and at frequent intervals thereafter.
When a wedge socket-type fastening is used, the dead or short end of the cable shall be clipped with a U-bolt or otherwise made secure against loosening.
Hooks, shackles, rings, pad eyes, and other fittings that show excessive wear or that have been bent, twisted, or otherwise damaged shall be removed from service.
Running lines of hoisting equipment located within 6 feet 6 inches of the ground or working level shall be boxed off or otherwise guarded, or the operating area shall be restricted.
There shall be not less than two full wraps of hoisting cable on the drum of cranes and hoists at all times of operation.
Drums shall have a flange at each end to prevent the cable from slipping off.
Bottom sheaves shall be protected by close fitting guards to prevent cable from jumping the sheave.
The reeving of a rope shall be so arranged as to minimize chafing or abrading while in use.
Frozen fiber rope shall not be used in load carrying service.
Fiber rope that has been subjected to acid or excessive heat shall not be used for load carrying purposes.
Fiber rope shall be protected from abrasion by padding where it is fastened or drawn over square corners or sharp or rough surfaces.
No open hook shall be used in rigging to lift any load where there is hazard from relieving the tension on the hook from the load or hook catching or fouling.