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 TM 55-1905-222-14
Troubleshooting - Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
RAMP SYSTEM
1.
CONTROL VALVE LEVER MOVES BUT WINCH DOES NOT TURN (CABLE IS FREE TO MOVE)
Check to see if any hydraulic line has burst.
Replace hoses and fittings (para 4-30).
2.
CONTROL VALVE LEVER DOES NOT MOVE
Check to see if control valve is seized.
Replace control valve (para 5-22).
Send defective control valve to general
support maintenance for repairs
3.
LOSS OF OIL FROM RAMP WINCH HYDRAULIC MOTOR
Check to see if motor seal is defective.
Repair motor (para 5-23).
4.
NOISY OPERATION OF PUMP.
Step 1.
Check for pump coupling misalignment.
Align pump coupling.
Step 2.
Check to see if pump is defective.
Replace pump (para 5-16).
Send defective pump to general support
maintenance for repairs.
5-7
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