TM 9-6115-659-13&P
Section V. TROUBLESHOOTING
4-9 GENERAL.
Paragraph 4-9.3 covers troubleshooting procedures for components unique to the power plant/power unit. Refer to the
applicable generator set or trailer technical manual, as listed below, for generator and trailer troubleshooting procedures.
4-9.1 Generator Set Troubleshooting. Refer to TM 9-6115-641-24 and TM 9-2815-252-24.
4-9.2 Trailer Troubleshooting. Refer to TM 9-2330-202-14&P for Power Plant AN/MJQ-35 and Power Unit PU-797, TM
9-2330-392-14&P for Power Plant AN/MJQ-35A and Power Unit PU-797A, and TM 9-2330-213-14&P for Power Plant
AN/MJQ-36.
4-9.3 Power Plant Troubleshooting. The following symptom index contains troubleshooting information for locating and
correcting operating troubles that may develop in components unique to the power plant end item. The symptom index
lists malfunctions associated with switch box operation. Each malfunction listing includes a reference to the applicable
figure that contains a chart. The chart will help you determine probable causes and corrective actions to take. The
symptom index 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 next higher level of maintenance.
SYMPTOM INDEX
Troubleshooting
Procedure
(Figure)
ON INDICATOR LAMP SERVICEABLE BUT FAILS TO LIGHT
WITH GENERATOR SET RUNNING ................................................................................................................. 4-5
ON-LINE INDICATOR LAMP SERVICEABLE BUT FAILS TO LIGHT WHEN
ON/OFF SWITCH IS PLACED IN ON POSITION .............................................................................................. 4-6
SYNCHRONIZING INDICATOR LAMPS FAIL TO LIGHT
WHEN TRANSFER SWITCH IS OPERATED .................................................................................................... 4-7
NO POWER TO LOAD WITH ON-LINE INDICATOR LAMP ON ............................................................................. 4-8
ALL INDICATOR LAMPS WORKING PROPERLY BUT LOAD WILL NOT TRANSFER ......................................... 4-9
Change 2 4-14
