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Ramsey Winch H-930r DOW-LOK w/Air Shifter for Grant Wrecker User Manual

Page 8

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CONDITION

POSSIBLE CAUSE

CORRECTION

Dry or rusted shaft.

Clean and lubricate.

Bent yoke or linkage

Replace yoke or shaft assembly

Debris in clutch

Clean and lubricate.

Clutch not disengaging, drum does
not freespool

Adjust clutch air shifter. See page 14.

Seal damaged or worn

Replace seal.

Too much oil.

Drain excess oil. Refer to Techniques of Operation .

Damaged gasket

Replace gasket

Safety brake has become worn.

Replace brake disc. See Servicing of the Oil Cooled Safety
Brake
.

Safety brake out of adjustment

Turn adjusting bolt clockwise 1/4 turn or until load does not
drift.

Hydraulic motor worn out.

Replace motor.

Low flow rate.

Check flow rate. Refer to Hydraulic Systems Performance
Chart, page 2.

Winch not mounted squarely,
causing end bearings to bind drum.

Check mounting. Refer to Winch Mounting section.

Clutch not disengaged.

Check air pressure to clutch cylinder--70 psi minimum
required. See page 14.

CABLE BIRDNESTS WHEN CLUTCH IS
DISENGAGED

Drag brake disc worn.

Replace discs.

HYDRAULIC FLUID LEAKS FROM
HOLE IN MOTOR ADAPTER

Damaged motor shaft seal.

Replace seal.

CABLE DRUM WILL NOT FREE SPOOL

TROUBLESHOOTING GUIDE

OIL LEAKS FROM HOUSING

LOAD DRIFTS DOWN

WINCH RUNS TOO SLOW

CLUTCH INOPERATIVE OR BINDS UP

TEST FOR PROPER BRAKE ASSEMBLY

After the brake has been adjusted to the proper torque setting disengage clutch. Start vehicle engine and run winch in the reel
in (hoisting direction). Allow winch to run in this direction for one minute.

Place your hand on the safety brake housing. If housing is not hot to the touch then run winch in the reverse direction (cable
out) for one minute. Brake housing should begin to heat.

When these conditions exist, proper installation has been made. If heating becomes noticeable when running the winch in for-
ward rotation (hoisting direction), the brake should be again disassembled. When disassembled, confirm that the balls are in
slot #2 of cam, then carefully follow the instructions for re-assembling and checking the brake.

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