TM 9-6115-604-34
NAVFAC P-8-633-34
SECTION II. TROUBLESHOOTING
2-4. GENERAL.
a.
Table 2-3 and Table 2-4 contain troubleshooting information for locating and correcting operating troubles which
may develop in the generator set. Each malfunction for an individual component, unit, or system is followed by a
list of inspections or tests which will help you to determine probable causes and corrective actions to take. You
should perform the inspections/tests and corrective actions in the order listed.
b.
This manual does not list all malfunctions that may occur, nor all inspections or tests and corrective actions. If a
malfunction is not listed or cannot be corrected by listed corrective actions, notify your supervisor.
Table 2-3. Engine Troubleshooting
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1.
ENGINE CRANKS BUT WILL NOT START.
Step 1.
Check fuel pump operation in accordance with paragraph 6-8.
Repair or replace as necessary.
Step 2.
Check for proper injector adjustment in accordance with paragraph 6-17.
Adjust.
Step 3.
Check injector operation in accordance with paragraph 6-17.
Repair or replace as necessary.
2.
ENGINE SHUTS DOWN SOON AFTER STARTING.
Step 1.
Check fuel pump for proper adjustment in accordance with paragraph 6-9.
Adjust fuel pump.
Step 2.
Check injector flow in accordance with paragraph 6-17.
Adjust fuel injectors.
3.
ENGINE SHUTS DOWN AND WILL NOT RESTART.
Step 1.
Check fuel pump operation in accordance with paragraph 6-8.
Repair as necessary.
Step 2.
Check fuel pump for proper calibration in accordance with paragraph 6-11.
Calibrate as necessary.
4.
ENGINE RUNS ERRATICALLY OR MISFIRES.
Step 1.
Check compression of all cylinders.
Repair as necessary.
Step 2.
Check turbochargers in accordance with the Operator and Organizational Maintenance Manual.
Repair as necessary.
2-11
