CM Big Orange wire rope clips will provide maximum holding strength when used according to the specifications listed and following these instructions:
- Refer to chart above in following these instructions. Turn back specified amount of rope from thimble
or loop. Apply first clip one base width from dead end of rope. Apply U-bolt over dead end of wire rope—live end rests in saddle. Tighten nuts evenly, alternate from one nut to the other until reaching the recommended torque.
- When two clips are required, apply the second clip as near the loop or thimble as possible. Tighten nuts evenly, alternating until reaching the recommended torque. When more than two clips are required, apply the second clip as near the loop or thimble as possible, turn nuts on second clips firmly, but do not tighten. Proceed to Step 3.
- When three or more clips are required, space additional clips equally between the first two—take up rope slack—tighten nuts on each U-bolt evenly, alternating from one nut to the other until reaching the recommended torque.
- Apply an initial load equal to loads expected in use. Inspect for proper orientation and spacing of clips and retighten the nuts to the recommended torque.
If a pulley (sheave) is used for rope turn back, add one additional clip.
The number of clips shown is based upon using RRL or RLL wire rope, 6 x 19 or 6 x 37 Class, FC or IWRC, IPS or XIP. If Seale construction or similar outer wire type construction in the 6 x 19 Class is to be used for sizes 1″ and larger, add one additional clip.
The number of clips shown also applies to rotation-resistant RRL wire rope, 8 x 19 Class, IP, XIP, sizes 11/2″ and smaller, and to rotation-resistant RRL wire rope, 19 x 7 Class, IPS, XIP, sizes 11/2″ and smaller.
For other classes of wire rope, additional clips may be necessary. Length of rope turn back should be increased when more clips are used.
Efficiency ratings for wire rope end terminations are based upon the breaking strength of wire rope. The efficiency rating of a properly prepared loop or thimble eye termination for clip sizes 1/8″ through 7/8″ is 80% and for sizes 1″ through 11/2″ is 90%.
In accordance with good rigging and maintenance practices, the wire rope end termination should be inspected periodically for wear, abuse and general adequacy.