Troubleshooting
2 - 4
PROBLEM
POSSIBLE CAUSE
CORRECTION ACTION
Winch Operates But Exhibits The Following Problems
No
HI-SPEED
mode
HI-SPEED
switch
malfunction.
Replace switch.
Wire harness.
Check connections and continuity or wire damage -
repair or replace harness.
Solenoid malfunction.
Check solenoid coil resistance and replace if
measurement is not between 46-51 Ohms.
Improper hose connection.
Inspect hydraulic lines and condition.
Motor servo problem.
Contact Allied Service Department.
2-speed spool in motor stuck.
Clean and/or repair 2-speed spool.
2-speed pressure switch mal-
functioning (normally closed.)
Repair or replace 2-speed pressure switch.
2-speed relay malfunctioning.
Repair or replace relay.
2-speed solenoid is not ener-
gized.
Repair power supply or replace coil and/or solenoid.
Winch stalls during
operation.
Insuffi cient hydraulic pressure
supplied by dozer.
Check dozer supply pressure (see Section 3). If
incorrect, contact Allied Service Department.
FREESPOOL
will not func-
tion or is diffi cult to engage.
FREESPOOL
shifter fork or
collar stuck.
Remove covers and inspect shifter fork & collar with
switch in
FREESPOOL
position. Repair parts if damaged.
Leakage at hydraulic connec-
tion or
FREESPOOL
shaft.
Remove covers and inspect shifter fork with switch in
FREESPOOL
position. Replace seals if leaking.
Insufficient control pressure
from tractor pilot supply.
1. Measure control pressure at brake (BR) port and
FREESPOOL
(FS) hose (refer to Section 3).
2. Check for leaks at hydraulic connections.
FREESPOOL
solenoid is not
energized.
Repair power supply or replace coil and/or solenoid.
Load on wire rope.
Move lever to
LINE-OUT
to release load.
Lever does not automati-
cally return to
BRAKE-ON
position.
1. Plunger seal sticking in
lever.
2. Spring in pilot controller
unit broken.
Remove and inspect pilot controller unit on control lever
assembly. Replace worn parts or entire assembly as
necessary.
Winch does not respond
to control lever movement.
1. Leak in the pilot controller
unit on control lever as-
sembly.
2. Control valve seized or
blocked.
Check for leaks in control lever assembly and replace if
necessary.
Leak in hydraulic system, or
loose hydraulic connections.
Visually inspect winch for leaks, and ensure hydraulic
connections are secure.
Figure 2-1 Mechanical/Hydraulic Troubleshooting Chart - 4
Summary of Contents for H5C Series
Page 8: ...vi Notes...
Page 48: ...General 1 40 Notes...
Page 59: ...Troubleshooting 2 6 Notes...
Page 77: ...Service 3 18 Notes...
Page 86: ...Section 4 4 9 Intentionally Blank...
Page 104: ...Section 4 4 27 Intentionally Blank...
Page 108: ......
