TM5-3810-305-10Unreeling and UncoilingWire rope is shipped in cut lengths, either incoils or on reels. Great care should be takenwhen the rope is removed from the shippingpackage since it can be permanently damaged byimproper unreeling or uncoiling. Looping therope over the head of the reel or pulling the ropeoff a coil while it is lying on the ground, willcreate loops in the line. Pulling on a loop will, atthe very least, produce imbalance in the rope andmay result in open or closed kinks (Figure 4-22).Once a rope is kinked, the damage is permanent.To correct this condition, the kink must be cutout, and the shortened pieces used for some otherpurpose.Improper handling will help create open (A) orclosed (B) kinks. The open kink will open therope lay; the closed kink will close it. Do notallow the rope to form a small loop. If, however,a loop forms and is removed at the point shown(C), a kink will be avoided. When the loopedrope is put under tension (D), a kink will form.The rope is then permanently damaged and is oflittle value.Unwinding wire rope from its reel also requirescareful and proper procedure. There are threemethods to perform this procedure correctly:1. Method A: The reel is mounted on a shaftsupported by two jacks or a roller payoff(Figure 4-23). Since the reel is free to rotate,the rope is pulled from the reel by a workman,holding the rope end and walking away fromthe reel as it unwinds. A braking deviceshould be employed so that the rope is kepttaut and the reel is restrained from over-running the rope. This is necessary particu-larly with powered de-reeling equipment.Figure 4-22. Wire Rope KinkingFigure 4-23. Mounted Unreeling4-31
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business
