TOW WINCH AND WIRE ROPE OPERATION
Tow winch wire rope can be pulled to load by 1
hand. However, the following procedures
make it a lot easier.
. Always wear leather gloves
(item 31, appx B) when han-
dling winch cable. Never
allow cable to run through
hands. Broken wires can
cause painful injuries. Do not
operate winch/crane with
less than four turns of wire
rope on drums. Failure to
observe these warnings could
result in personnel injuries.
. Any kinks, crushed sections,
or broken strands are poten-
tial weak points and can
cause wire rope failure.
Frayed, kinked, worn, or cor-
roded ropes must be replaced.
Rope is unsafe if three brok-
en wires are found in one
strand of 6 x 7 rope, six
broken wires in one strand of
6 x 19 rope, or nine broken
wires in one strand of 6 x 37
Open tow winch access door and pull
tow winch wire rope clevis out through
Pay out a few feet of tow winch wire
rope and reeve rope through snatch
block on underside of boom. Refer to
Take 5/8-in. (1.59-cm) sheave snatch
block, stowed on left side of cab, and at-
tach to load being recovered.
4 Disconnect boom winch wire rope from
boom and remove single boom block
from wire rope. Refer to page 2-75.
5 Pay out boom wire rope to load and pull
boom winch wire rope through snatch
block attached to load. Pull boom winch
wire rope back and attach to tow winch
6 Operate boom winch to pay in wire rope
and at same time operate tow winch to
pay out tow winch wire rope until tow
winch wire rope reaches load to be
The 3/4-in. (1.91-cm) fiber rope
may be used to supplement
boom winch wire rope to reach
loads at greater distance.
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