Table 3-77. Anchor Winch Engine - Hydrostarter Fluid Emerges Around Rubber Boot of Hand Pump

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Table 3-75. Anchor Winch Engine - Hydrostarter High Pressure in System (3500 psi or above) Troubleshooting

TM-55-1905-220-14-3 Landing Craft Unit LCU 1671-1679 (1905-01-009-1056) Manual

Table 3-78. Hydrostarter - Cranking Cycle Too Short - Troubleshooting cont'd

TM 55-1905-220-14-3

Table 3-77. Anchor Winch Engine - Hydrostarter Fluid Emerges

Around Rubber Boot of Hand Pump - Troubleshooting.

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

Fluid emerges around rubber boot or hand pump.

Check for damaged piston seal rings.

Replace the seal rings and leather back-up rings on the pump piston. Refer to

paragraph 3-179.

Table 3-78. Hydrostarter - Cranking Cycle Too Short -

Troubleshooting.

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

Cranking cycle is too short.

Step 1.

Check for faulty pressure gage.

If gage is reading higher than actual system pressure, oil volume in the accumulator will

be less. Replace gage.

Step 2.

Check for excessive internal leakage in hydro-starter.

Step 3.

Check for accumulator precharge too high.

With the fuel shut off to prevent engine from starting, crank the engine until all oil is

used. If the gage then registers zero pressure, install a gaging assembly on the air valve

and drop the precharge to 1250 psi (1695 kPa). Repeat cranking cycle. If gage will still

drop to zero at end of cranking cycle, reduce precharge to 1000 psi (1356 kPa).

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