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

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Hand pump fails to discharge fluid

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

Table 3-17. Hydrostarter - Loss of Accumulator Precharge (Nitrogen) - Troubleshooting

TM 55-1905-219-14-3

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

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

1. Starter turns but engine does not.

Step 1.

Check for pinion not engaging flywheel ring gear.

Replace as per paragraph 3-46.

Refer to Direct Support

Maintenance.

Step 2.

Check for pinion clutch slipping. Can be

caused by cold weather or heavy lubricant.

Wash out the heavy lubricating

oil and replace it with SAE 5W

or SAE 1OW oil.

Step 3.

Check for overrunning - clutch burned out.

Replace as per paragraph 3-46.

Refer to Direct Support

Maintenance.

Table 3-17. Hydrostarter - Loss of Accumulator Precharge

(Nitrogen) - Troubleshooting.

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

1. Loss of accumulator precharge (nitrogen).

Step 1.

Check for damaged seal ring on piston.

Some nitrogen precharge, but no

fluid pressure in the system,

bubbles and foaming in the reser-

voir indicates that the nitrogen

is leaking past the seal ring on

the accumulator piston. Refer to

Direct Support Maintenance.

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