TM 9-6115-662-13&P
Section V. TROUBLESHOOTING
4-9. 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 operation. Figure 4-4,
figure 4-5, figure 4-6, figure 4-7, and figure 4-8 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
Troubleshooting
Symptom
Procedure
Indicator lamp is good but does not light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. Figure 4-4
Unit A has no power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 4-5
Unit B has no power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Figure 4-6
Power is absent at all switch box load terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Figure 4-7
Cables are connected, but unit fails to parallel through switch box . . . . . . . . . . . . . . . . . . . . . Figure 4-8
4-11
