Table 3-2. Operator/Crew Troubleshooting - Continued
TEST OR INSPECTION
ENGINE - continued
15. ENGINE STOPS SUDDENLY - continued.
Check for dirty, clogged fuel filter.
Replace a dirty fuel filter.
Drain the fuel tank and refill with clean fuel of proper grade. Replace fuel filter and purge
Check for engine overheating (safety switch shutdown).
Fill radiator with coolant as needed. Add oil to engine crankcase as needed. Adjust fan drive
belt as necessary. Examine radiator hoses for leakage and notify organizational maintenance if
hoses require replacement. Allow engine to cool before restarting. No reset, other than
allowing to cool, is necessary for this safety shutdown.
Check for low engine oil pressure (safety switch shutdown).
Add oil to crankcase to the full mark on the dipstick. Re fer to LO 5-4310-354-12, figure 3-1. No
reset is required for this safety shutdown other than replenishment of oil.
Check for air compressor overheating (safety switch shutdown).
Add oil to separator tank as necessary. Refer to LO 5-4310-354 -12, figure 3-1. Inspect
compressor oil lines, to and from the oil cooler, and the oil cooler for evidence of leakage.
Notify organizational maintenance of leakage. No reset is required other than allowing unit to
cool after replenishing oil supply.
Check for engine overspeed trip (safety shutdown switch).
Notify organizational maintenance for an overspeed malfunction. Cause for the overspeed
must be determined, speed control linkage adjusted, and overspeed switch must be reset.
Check for other causes of engine stopping suddenly.
Notify organizational maintenance.
16. AIR COMPRESSOR IS OVERHEATING.
Check for proper level of oil in oil separator tank.
Add oil as necessary. Proper level is to overflow at filler elbow. Refer to LO 54310-354-12,