ARMY TM 9-6115-671-14
AIR FORCE TO 35C2-3-446-32
MARINE CORPS TM 09249A/09246A-14
4-10
SECTION V. TROUBLESHOOTING
4.5
GENERAL.
This section contains 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 tests or inspections which will help to determine probable causes and corrective actions to take. Perform the
tests/inspections in the order listed.
Table 4-1 provides unit troubleshooting. This table cannot list all malfunctions that may occur, nor all tests or
inspections and corrective actions. If a malfunction is not listed, or is not corrected by listed corrective actions,
notify your supervisor.
NOTE
Before using this table, PMCS and operator level troubleshooting must have been
performed.
NOTE
Refer to paragraph 2.4 for diagnostic controls and indicators.
SYMPTOM INDEX
Page
Engine Fails to Crank ...............................................................................................................................................4-12
Engine Cranks, But Fails To Start ............................................................................................................................4-15
Engine Fails To Start In Cold Weather.....................................................................................................................4-17
Engine Stops Suddenly .............................................................................................................................................4-18
Engine Runs Erratically or Stalls Frequently............................................................................................................4-19
Engine Does Not Develop Full Power......................................................................................................................4-20
Abnormal Engine Noise............................................................................................................................................4-21
Black or Gray Exhaust Smoke..................................................................................................................................4-22
Blue or White Exhaust Smoke..................................................................................................................................4-23
CIM Display Screen Does Not Display and Backlight Does Not Light....................................................................4-24
CIM Display Screen Works, But Backlight Does Not Light or Only Partially Lights..............................................4-25
CIM Display Screen BATTERY VDC Indicator Shows Low or No charge ............................................................4-26
CIM Does Not Respond To Keypad Commands or Update Display........................................................................4-27
CIM Display Screen BATTERY VDC Indicator Shows No Charge When Batteries Are Low or Discharged........4-28
CIM Display Screen BATTERY VDC Indicator Shows Excessive Charging After Prolonged Operation ..............4-29
CIM Display Screen VOLTAGE Gage Fluctuates ...................................................................................................4-30
CIM Display Screen FREQ Gage Fluctuates............................................................................................................4-31
High Oil Consumption..............................................................................................................................................4-33
Engine Misfiring.......................................................................................................................................................4-34
CIM Display Screen Indicates WATER TEMP Meter Indicates Coolant Temperature Too Low ...........................4-35
Excessive Fuel Consumption....................................................................................................................................4-36
Coolant In Crankcase or Oil In Coolant....................................................................................................................4-37
Engine Vibrating.......................................................................................................................................................4-37
CIM Display Screen VOLTAGE Gage Does Not Indicate Voltage .........................................................................4-38
CIM Display Screen VOLTAGE Gage Indicates Voltage, But FREQ Gage Is Off Scale........................................4-39
FAULT INDICATOR Displays CIRCUIT FAILURE - FUEL LEVEL..................................................................4-40
FAULT INDICATOR Displays CIRCUIT FAILURE - OIL PRESSURE (low) or OIL PRESSURE (high) .........4-41
FAULT INDICATOR Displays CIRCUIT FAILURE - COOLANT TEMP ..........................................................4-42
SYMPTOM INDEX Continued
