ARMY TM 9-6115-644-24
AIR FORCE TO 25C2-3-446-12
MARINE CORPS TM 09249A/09246A-24/2
TABLE 2-1. Direct Support Troubleshooting - Continued
MlALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 9.
Test for low engine compression, refer to TM 9-2815-255-24.
If compression is low, repair or replace engine in accordance with TM 9-2815-255-24.
5. BLACK OR GRAY SMOKE IN EXHAUST.
Step 1.
Check for defective fuel injection nozzles, refer to TM 9-2815-255-24.
a.
If fuel injection nozzles are not defective, do step 2.
b.
If defective, replace fuel injection nozzles, refer toTM9-2815-255-24.
Step 2.
Test fuel injection pump timing, refer to TM 9-2815-255-24.
If timing is not correct, time fuel injection pump in accordance with TM 9-2815-255-24.
6.
BLUE OR WHITE EXHAUST SMOKE.
Test fuel injection pump timing, refer to TM 9-2815-255-24.
If timing is not correct, time fuel injection pump in accordance with TM 9-2815-255-24.
7. LOW OIL PRESSURE.
Step 1.
Check for defective regulating valve, refer to TM 9-2815-255-24,
a.
If regulating valve is not defective, do step 2.
b.
If defective, replace regulating valve in accordance with TM 9-2815-255-24.
Step 2.
Check for defective oil pump, refer to TM 9-2815-255-24.
a.
If oil pump is not defective, repair or replace engine.
b.
If oil pump is defective, replace oil pump in accordance with TM 9-2815-255-24.
8. HIGH OIL PRESSURE.
Test for defective oil filter relief valve, refer to TM 9-2815-255-24.
If defective, replace oil filter relief valve in accordance with TM 9-2815-255-24.
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