TM 5-5420-280-10
0039 00
LPU Engine Troubleshooting (Contd).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 5. Engine speed control lever does not remain in required position.
If loose or damaged, notify field maintenance.
END OF TESTING
7. ENGINE SPEED AND PERFORMANCE DROP OFF AND BLACK SMOKE IS EMITTED
Air filter is obstructed.
Clean air filter element. Refer to WP 0048 00. If problem persists,
notify field maintenance.
END OF TESTING
8. ENGINE RUNS VERY HOT AND INDICATOR LAMP FOR CYLINDER HEAD
TEMPERATURE COMES ON
Step 1. Check engine for too much oil (crankcase is overfilled).
If overfilled, notify field maintenance.
Step 2. Inadequate cooling.
a. Shrouds plugged.
Clean obstructions or seal openings as required.
b. Cylinder head cooling fins obstructed with debris.
Clean debris from cooling fins.
END OF TESTING
END OF WORK PACKAGE