TEST OR INSPECTION.
WINCH OPERATES IN ONE DIRECTION ONLY:
Inspect all oil lines for damage and leakage.
Replace lines (para 12-13).
Inspect directional control valve for leakage.
Tighten connections or replace valve (para 12-11).
Check winch motor for leakage and visible signs of overheating.
Replace winch motor (para 12-14).
Check to see if pilot orifice in winch brake valve is plugged.
WINCH DOES NOT OPERATE IN EITHER DIRECTION:
Check all oil lines for damage and leakage.
Tighten loose connections and replace defective components.
Check pump inlet strainer and in line filter for clogging.
Replace filter element (para 12-9 and 12-10).
Check reservoir for proper oil level.
Fill to proper level (LO 9-2320-273-12).
Check pump for leakage and visible signs of overheating.
Replace pump (para 12-15).
Connect a pressure gage in line between each control valve and winch motor
(one at a time) and attempt to operate.
If pressure is normal (2350 psi maximum), refer winch to Direct
Support Maintenance for replacement.
Table 12-1. Winch Troubleshooting Procedures.