TM 5-4310-379-14
4-5.
Direct Support Troubleshooting Procedures . Table 4-1 lists the common malfunctions that may be found
during operation. Refer to symptom index to locate the troubleshooting procedures for the malfunction. This manual
cannot list all malfunctions that may occur, nor all test or inspections and corrective actions. If a malfunction is not
corrected by listed corrective actions, notify your supervisor.
SYMPTOM INDEX
Symptom
Page
1.
Engine will not start.....................................................................................................................................
4-2
2.
Engine runs rough or erratically...................................................................................................................
4-2
3.
Engine overheats........................................................................................................................................
4-3
4.
Low pressure output pressure.....................................................................................................................
4-3
5.
Power take-off will not engage....................................................................................................................
4-3
Table 4-1. Direct Support Troubleshooting Procedures.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1.
ENGINE WILL NOT START.
Check fuel injectors.
Replace defective fuel injector (para. 4-10).
2.
ENGINE RUNS ROUGH OR ERRATICALLY.
Step 1. Governor out of adjustment.
Adjust governor (para. 4-11).
Step 2. Valve operating mechanism out of adjustment.
Adjust valve operating mechanism (para. 4-21).
Step 3. Fuel injectors out of timing.
Adjust fuel injectors (para. 4-10).
Step 4. Injector controls out of adjustment.
Adjust injector controls (para. 4-9).
4-2
