General Machine Products 70530 Adams WG Winch - Manual (Page 4)

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The remote actuator, reservoir, and flexible hose section are shipped loose with other winch hardware in the parts
box. These components are to be installed by the dealer or truck body builder. The closed circuit hydraulic sys-
tem is shipped void of any fluid. Prior to operation, fill the system with only the exact type of fluid that was origi-
nally specified for your winch. This will be so designated on the caliper brake components and will be brake fluid
only
on specific units or hydraulic oil only on specific units. Bleed and replenish with additional fluid of the correct
formulation, as required. Refer to section 3.04 of this manual.
1.05
ADJUSTABLE MULTIPLE DISC LOAD HOLDING OIL BRAKE - The load holding brake, which is
mounted on the gearbox, is an automatic device designed to hold the rated load of the winch, 20,000 lbs. (89 kN),
on a bare drum. The load holding brake is designed to release when the winch drum is rotating in the pull direc-
tion. The brake automatically engages when the winch drum rotates in reverse or payout direction. In order to re-
lax the tension in the pulling line a small amount of reverse power is necessary. The load holding brake is factory
set and should be tightened only to the amount necessary to maintain desired tension on the pulling line.
1.06
2-SPEED MOTOR - The WG winch comes equipped with a 2-speed motor. The WG winch defaults to low
speed and can be shifted into high speed mode requiring a pilot pressure of 100 PSI to 150 PSI. The pilot pres-
sure should come from a tee in the line from the hydraulic pump and the directional control valve via a two-
position, three-way selector valve which can be either manually or solenoid operated. For more information on
speed and pull values, please refer to the specification sheet on page 24.
There is a case drain on the motor with a 7/16-20 o-ring port and it MUST be connected to the tank using a
separate dedicated hydraulic line.
For more information, see section 3.02 Hydraulic Requirements on page 7.
1.07
LEVEL WIND MECHANISM - The levelwind assembly is a derivative of Bell System specification 8414
and is a familiar sight on other Adams winches. The levelwind distributes the wire rope onto the drum with tight,
even lays. The tight, compact layers help to extend wire rope life by eliminating the upper layers from pulling
down into lower layers. The strain and damage to the wire rope from this action can lead to premature wire rope
failure. The levelwind also helps in maximizing the drum storage capacity. The even and compact layers allow for
more efficient wire rope storage.
1.08 ACCESSORIES
- The drum shaft extension is an accessory that makes the WG winch even more versa-
tile. The shaft extension has a diameter of 2 7 /
16
inch (Bell System standard) and is mounted on the winch drum
shaft by means of a coupling secured by a connecting pin. Designed with the conventional bayonet type of con-
nection, it is ideally suited for driving a power reel or capstan. To mount a device onto the shaft extension, slide
the device spindle over the shaft extension, push all the way in, turn counter clockwise and pull out into the locked
position.
The WG winch is equipped with an adjustable multiple disc oil
brake. This style of brake can be adjusted by turning hex ad-
juster counter-clockwise to increase brake and clockwise to
decrease brake.
In general, worm brakes on WG winches should only be
adjusted enough to hold the load you are currently working
with. Over adjustment will result in excessive heat
generation and brake wear.
Full Load Brake