Troubleshooting Guide; Adjustment Of Clutch Air Shifter - RAMSEY WINCH DOW-LOK 800 Serie Manuel Du Propriétaire

CONDITION
CLUTCH INOPERATIVE OR BINDS
UP .
OIL LEAKS FROM HOUSING.
LOAD DRIFTS DOWN.
WINCH RUNS TOO SLOW
CABLE DRUM WILL NOT FREE
SPOOL.
CABLE BIRDNESTS WHEN
CLUTCH IS DISENGAGED.
HYDRAULIC FLUID LEAKS OUT
HOLE IN MOTOR ADAPTER.

ADJUSTMENT OF CLUTCH AIR SHIFTER

1. Place winch assembly back into mounting frame and reattach using (8) mounting bolts and lockwashers. Torque mounting
hardware to 290 ft. lbs. each. Make sure that gear housing and clutch housing are not rubbing against drum flanges.
2. Place air shifter assembly #1 over shifter shaft aligning clevis over flats of shaft. Secure clevis to shaft using clevis pin
#62 and cotter pin #61. Place shifter shaft in the "ENGAGED" position. With the air cylinder shaft fully retracted, push
shifter assembly toward the drum until all play is taken out of the shifter shaft. Secure shifter assembly to clutch housing
using (4) capscrews #39 (flanged hx. hd. serrated). Tighten securely, but do not torque.
3. Hook up air (70 to 90 psi) to inlet port of air cylin-
der and disengage clutch. Look into the opening in
the clutch housing and verify that the locking ring
and retainer plate are not making contact. Locking
ring and retainer plate must not make contact.
There must be a clearance (gap) of .09 inch
(max.) between the locking ring and retainer plate
when the winch is fully disengaged. If there is
contact, the (4) capscrews #39 should be loos-
ened and the plate pulled away from the drum
approximately .06 inch. Tighten screws securely
and check action to assure needed clearance.
Repeat adjustment procedure as needed to acquire
needed gap. Shift clutch 2 or 3 times to verify
proper shifting of clutch. After final adjustment,
torque (4) capscrews #39 to 18 ft. lbs. each.
Attach cover #43 using (4) capscrews #52.

TROUBLESHOOTING GUIDE

POSSIBLE CAUSE
1. Dry or rusted shaft.
2. Bent yoke or linkage.
1. Seal damaged or worn.
2. Too much oil.
3. Damaged gasket.
1. Safety brake has become worn.
2. Safety brake out of adjustment.
1. Hydraulic motor worn out.
2. Low flow rate.
1. Winch not mounted squarely,
causing end bearings to bind
drum.
1. Drag brake disc worn.
1. Hydraulic motor shaft seal dam-
aged.
RETAINER
PLATE
6
1. Clean and lubricate.
2. Replace yoke or shaft assembly.
1. Replace seal.
2. Drain excess oil. Refer to TECHNIQUES OF OPER-
ATION.
3. Replace gasket.
1. Replace brake disc. (See Page 7, Diagram 1).
2. Turn adjusting bolt clockwise 1/4 turn or until load
does not drift.
1. Replace motor.
2. Check flow rate. Refer to Hydraulic Systems flow
chart, page 5.
1. Check mounting. Refer to WINCH MOUNTING
page 4.
1. Replace discs.
1. Replace seal.
1
62
.09 MAX.
LOCKING
RING
CORRECTION
52 36
61
39
44
18
WINCH ASSEMBLY
28
16