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Step 3. Connecting hook must not be damaged, broken, distorted, or
have any sharp edges, burrs, cracks, worn parts, or corrosion.
Ensure the connecting hook works properly. Hook gate must
move freely and lock upon closing. Hook must swivel freely.
Step 4. Wire Rope: Inspect entire length of wire rope assembly starting
at the hook. Always wear protective gloves when inspecting
wire rope.
A. Inspect for broken wires by passing the wire rope through gloved
hands, flexing it every few inches to expose breaks. Broken wires
can be removed by bending the wire back and forth parallel to the
rope length. Do not attempt to pull wires out of rope. Inspect for
kinks, cuts, crushed burned areas, or other damage. Wire rope with
serious damage must be removed from service.
B. The wire rope assembly must be replaced by an authorized service
center if there are six or more randomly distributed broken wires in
one lay, or three or more broken wires in one strand in one lay. Note:
A “lay” of wire rope is the length of wire rope that it takes for a
strand (the larger groups of wires) to complete one revolution or
twist along the rope.
C. The wire rope assembly must be replaced by an authorized service
center if there are any broken wires within one inch of the metal
compression sleeves at either end of the assembly. Note: To inspect
wire rope area near compression sleeves on hook end, remove
counterweight (8101000 series) or slide rubber hook bumper up on
wire rope (8102001 series).
D. Inspect entire length of wire rope for signs of corrosion. Severely
corroded wire rope must be replaced.
Synthetic Rope: Inspect for the following if the winch uses synthetic rope:
A. Inspect for concentrated wear, frayed strands, broken yarns, cuts,
and abrasions. The line must be free of knots, excessive soiling,
heavy paint buildup, and rust staining throughout its length.
B. The line must be free of chemical or heat damage, indicated by
brown, discolored, or brittle areas.
C. The line must be free of ultraviolet damage, indicated by discoloration
and the presence of splinters and slivers on the rope surface.
D. All of the above factors are known to reduce rope strength. As a rule
of thumb, rope strength is reduced proportional to the cross
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