Section VI. TROUBLESHOOTING
General. Troubleshooting procedures for components unique to the power plant end item are
given in paragraph 4-14. Troubleshooting information for the individual generator sets and trailers are
contained in their respective manuals referenced below:
a. Generator Set Troubleshooting. Refer to TM 5-6115-464-12 for troubleshooting procedures
applicable to the generator set.
b. Trailer Troubleshooting. Refer to TM 9-2330-205-14&P for troubleshooting procedures
applicable to the trailers.
Power Plant Troubleshooting. Table 4-2 contains troubleshooting information for locating and
correcting operating troubles which may develop in components unique to the power plant end item.
Each malfunction is followed by a list of tests or inspections which will help determine probable cause
and corrective actions to take. Perform the tests/inspections and corrective actions in the order
listed. This manual cannot list all malfunctions that may occur, nor all tests or inspections and
corrective actions. If a malfunction is not listed or cannot be corrected by listed corrective actions,
notify your supervisor.
Table 4-2. Troubleshooting.
Test or inspection
1. POWER IS ABSENT AT SWITCH BOX LOAD TERMINAL(S) WHEN ONE PARTICULAR POWER UNIT IS
Check if associated generator set circuit breaker is set to ON position.
If circuit breaker is in OFF position, reset to ON position.
Verify associated generator set output is as desired. Check generator output at
If power is absent at generator set load terminals, troubleshoot
generator set. (Refer to TM 5-6115-464-12.)
Perform continuity check on associated power unit power cable.
If cable is defective, notify higher level of maintenance.
Perform continuity check on associated switchbox connector.
If connector is defective, notify higher level of maintenance.
Perform continuity check on associated switch.
If switch is defective, notify higher level of maintenance.
*U.S.Government Printing Office: 1989-654-030/00368
PIN: 064446 001