General Machine Products 70524 Adams CD3 Continuous Duty Winch - Manual (Page 12)

AK 7/18/2012 ver 5
Likewise, when the winch is not in operation, attach the winch line quick hook to a solid member on the tail shelf
and slowly take up the slack. This will best maintain the rope under a slight amount of tension until its next use
and will prevent the rope from unwinding or "clock-springing."
3.07
WINCH DRUM DIRECTION OF ROTATION - Depending upon customer specifications, the wire
rope will either be over-wound or underwound.
OVER-WINDING - is the term used when the winch drum is rotating in the clockwise direction (viewing from the
right side) and the wire rope is spooled onto the winch drum at the top. Model CD3 winches have two rope
clamps, one located inside of each drum flange, for compatibility with wire rope of either right or left hand lay. It
is imperative, however, that the wire rope be attached to the specific side of the drum that is consistent with the lay
of the rope and the direction of drum rotation. When the drum will be over-winding as the wire rope is spooled in,
use the rope clamp on the side of the drum that is the same as the lay of the wire rope. For example, if using right
lay rope on an over-wind drum attach the wire rope to the right side rope clamp.
UNDER-WINDING – refers to the winch drum that rotates in a counterclockwise direction (viewing from the right
side) and the wire rope is spooled onto the winch drum at the bottom. Once again, it is imperative that the wire
rope be attached to the correct side of the drum for the specific direction of the lay of the rope given the direction
of drum rotation. When the drum will be underwinding as the wire rope is spooled in, use the rope clamp on the
side of the drum which is opposite of the lay of the wire rope. For example, if using right lay rope on an under-
wind drum attach the wire rope to the left side rope clamp.
For underwind applications, the wire rope must be guided and maintained as it is routed forward under the body
deck to the winch drum. This can be done by using a trough or tube with sufficient width at the front section to
allow the wire rope to freely traverse the width of the drum. As the wire rope travels to the drum, and depending
on the angle of incline combined with the body cross-member configuration, a floating sheave or roller may be
required. Application engineering assistance is available from the factory.
WARNING - THE CABLE CLAMP ALONE IS NOT DESIGNED TO HOLD THE RATED LOAD.
½ OF THE FIRST LAYER OF WINCH LINE MUST BE LEFT ON THE DRUM TO ACHIEVE
THE RATED LOAD AND AVOID CABLE CLAMP FAILURE.
3.08 WINCH
IDENTIFICATION – Assistance from the manufacturer or dealer is available to help resolve
unique problems. When contacting your local dealer or the factory, the model and serial number of the winch in
question should be specified so that proper assistance can be offered. This information is stamped on a nameplate
affixed to the front of the gearbox.
4. PRE-OPERATIONAL
CHECKS
IMPORTANT - BEFORE PLACING THE WINCH IN SERVICE, THE FOLLOWING CHECKS
MUST BE MADE:
♦ Make certain that the winch assembly is properly secured to the chassis frame.
♦ The operator must have a complete understanding of all winch functions and the location and operation of
all controls.
♦ The winch line should be spooled onto the drum under tension with tight, even, coils and lays.
♦ It is not necessary to have the drum filled with winch line. Additional pulling capability can be obtained
by only installing a slight excess of the maximum length required for the job, while also improving the
laying of winch line on the drum.
♦ Refer to the operating manual for the vehicle for specific operational instructions on the hydraulic system.
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