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TM 55-1905-220-14-3
Table 3-17.
Hydrostarter - Loss of Accumulator Precharge (Nitrogen) Troubleshooting (Cont).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1.
Loss of accumulator precharge (nitrogen) (Cont).
Step 2.
Check for defective air valve.
Release the pressure in the system by opening the relief valve on the side of the
hand pump. Then, loosen the hex lock nut on the nitrogen valve approximately 3/4
turn to release the remaining precharge before attempting to remove the valve
from the accumulator. Replace the air valve. Refer to Direct Support Maintenance.
Step 3.
Check for damaged seal ring between shell and end cap.
Apply light oil on the threaded end of the accumulator at the end of the cap.
Bubbling of the oil indicates a leak past the end cap seal. Refer to Direct Support
Maintenance.
3-71


 


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