General Machine Products 70530 Adams WG Winch - Manual (Page 12)

Page 12 of 28 www.gmptools.com
3.06 WINCH DRUM DIRECTION OF ROTATION -
NOTE: The WG winch is only available in an UNDERWIND configuration.
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 when viewed from the rear of the truck.
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 trav-
erse 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.
3.07 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 name-
plate affixed to the front mounting rail.
4.01 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.
● Check the hydraulic system reservoir to make certain that it is filled to the correct level with the proper
grade of oil.
● Make certain that the reservoir shut-off valve is OPEN.
● Engage the hydraulic pump drive and allow the oil to circulate and warm up for a few minutes before oper-
ating the winch. This is especially important during extremely cold weather.
● Check the hydraulic system for the correct pressure and flow.
● Check all winch and winch accessory gear housings for the correct oil level and grade. See Section 6.02
LUBRICATION.
● Engage the hydraulic pump drive and allow the oil to circulate and warm up for a few minutes before oper-
ating the winch. This is particularly important during extremely cold weather.
● Check the operation of the drag brake.
● Check the truck body load area in a triangular section between the tail shelf sheave and both drum
flanges to see that there are no obstructions that could restrict the travel of the winch line or levelwind.
● Make sure the drag brake has been bled to assure positive activation of the brake. See Section 3 for pro-
cedures.
● Ensure that no wire rope has run over the drum flanges and off of the drum. If any wire rope has run off of
the winch drum, put the wire rope back onto the winch drum and spool off the loose wraps. The wire rope
should then be rewound onto the winch drum under tension.