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TM 5-4320-304-14
TM 08922A-14/1
Table 3-1. Operator Troubleshooting - Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
6. EXCESSIVE LUBRICATING OIL CONSUMPTION
Step 1.
Check for leakage at oil drain plug or oil filler cap.
If drain plug or oil filler cap is leaking, try to tighten. If leak continues,
notify organizational maintenance.
Step 2.
Check for leakage at joint between timing cover and crankcase.
Notify organizational maintenance.
Step 3.
Check for leakage around cylinder head.
Notify organizational maintenance.
Step 4.
Check for smoky exhaust. If exhaust discharge contains oil, excessive oil is
being burned in engine cylinder or around cylinder valve stems.
Notify organizational maintenance.
7. PUMP FAILS TO PRIME
Step 1.
Check for low engine speed.
Adjust throttle lever to increase engine speed.
Step 2.
Check for air-locked pump.
Vent the pump volute and fill with water (para 2-4.b.).
Step 3.
Check for leaks at the suction (intake) flange and gasket.
Tighten nuts on suction (intake) flange at pump case.
8. NOISY PUMP OPERATION
Notify organizational maintenance.
9. LOW DISCHARGE PRESSURE
Step 1.
Check for low engine speed.
Adjust throttle lever to increase engine speed.
Step 2.
Check suction (intake) line for leaking connections.
Tighten loose connections.
3-6
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