Ramsey Winch H-930r DOW-LOK w/Air Shifter for Grant Wrecker User Manual
Page 8
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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