Table 3-74. Hydrostarter - Loss of Accumulator Precharge (Nitrogen)

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Table 3-74. 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 reservoir indicates that nitrogen is leaking past the seal ring on

accumulator piston. Refer to Direct Support Maintenance.

Step 2.

Check for defective air valve.

Release pressure in system by opening relief valve on side of hand pump.

Loosen hex lock nut on nitrogen valve approximately turn to release

remaining precharge before attempting to remove valve from accumulator.

Replace the air valve. Refer to Direct Support Maintenance.

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