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 TM 11-1905-219-14-3
Table 3-72. Anchor Winch Engine - Hydrostarter - Hand Pump
Fails to Discharge Fluid - Troubleshooting.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. Hand pump fails to discharge fluid.
Step 1.
Check for open manual relief valve.
Close the relief valve.
Step 2.
Check for leaking check valves.
If caused by dirt, open the relief valve and operate hand pump slowly for a
few minutes to wash particles out of check valves. If this is unsuccessful,
stone and clean the ball seats in pump body and replace the balls and
springs if necessary.
Refer to paragraph 3-179.
Step 3.
Check for plugged reservoir screen.
Remove and clean reservoir screen, flush reservoir tank and reassemble.
Refer to paragraph 3-180.
Step 4.
Check for low fluid level.
See table 3-68, step 2.
Step 5.
Check for air in system.
To purge the hand pump of air:
a. Relieve any system pressure. Disconnect outlet hose from the hand
pump.
b. Close manual relief valve and operate pump until fluid is discharged
when stroking in both directions.
c. Reconnect the outlet hose.
Step 6.
Check for dirt in pump. See step 2.
Step 7.
Check for damaged piston seal rings.
Replace the seal rings. Refer to paragraph 3-17 .
9
3-217
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