Hand pump fails to discharge fluid - TM-55-1905-219-14-30078

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Table 3-15. Hydrostarter - Hand Pump Fails to Discharge Fluid - Troubleshooting

TM-55-1905-219-14-3 Landing Craft Utility (LCU) 1667 Class Boston Hull Numbers 1667-1670 NSN 1905-00-168-5764 Manual

Table 3-16. Hydrostarter - Starter Turns but Engine Does Not - Troubleshooting

TM 55-1905-219-14-3

Table 3-15. Hydrostarter - Hand Pump Fails to Discharge Fluid - Troubleshooting (Continued).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

1. Hand pump fails to discharge fluid (Cont)

Step 5.

Check for air in system.

To purge the hand pump of air:

a. Relieve any system pressure,

then disconnect the outlet

hose from the hand pump.

b. Close the manual relief valve

and operate the 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 3-49.

3-72