TM 9-6115-662-13&P
Section Il. TROUBLESHOOTING
5-4. GENERAL.
Refer to TM 9-6115-644-24 for generator set troubleshooting procedures, and to TM 9-2815-255-24 for
engine troubleshooting procedures. Refer to TM 9-2330-205-14&P for trailer troubleshooting procedures.
The symptom index for the power plant lists faults associated with switch box assembly operation.
Figures 5-1 through 5-9 provide a go-no-go flowchart of each malfunction. Each malfunction listed
includes a reference to the applicable figure that contains a chart to help you determine probable causes
and corrective actions to take. The symptom index cannot list all faults that may occur, nor all the 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 for assistance.
SYMPTOM INDEX
Symptom
Troubleshooting
Procedure
Unit A STATUS lamp does not light with generator set AC CIRCUIT INTERRUPTER
switch closed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unit A has no input power toK1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unit A has no output power from K1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unit A has output power from K1 but no output at one or more load terminals . . . . . . . . . . .
Unit B STATUS lamp does not light with generator set AC CIRCUIT INTERRUPTER
switch closed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unit B has no input power to K2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unit B has no output power from K2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unit B has output power from K2 but no output at one or more load terminals . . . . . . . . . . .
Power cable W19 and paralleling cables are good, but unit fails to parallel through switch box
Figure 5-1
Figure 5-2
Figure 5-3
Figure 5-4
Figure 5-5
Figure 5-6
Figure 5-7
Figure 5-8
Figure 5-9
5-3
