TM 5-6115-640-14&P
4-14. POWER PLANT TROUBLESHOOTING.
Table 4-2 contains troubleshooting information for locating and correcting operating troubles which may develop in
components unique to either 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.
Troubleshooting information pertains to both power plants.
NOTE
Before you use the table, be sure you have performed your PMCS.
Table 4-2. Troubleshooting.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. POWER IS ABSENT AT SWITCH BOX LOAD TERMINAL(S) WHEN ONE GENERATOR SET IS
OPERATING.
Step 1. Check that circuit breaker on generator set control panel
is set to ON position.
If circuit breaker is in OFF position, set to ON
position.
Step 2. Check for power output at generator set load terminals.
If power is absent at generator set load terminals,
troubleshoot generator set. (Refer to TM 5-6115-
615-12).
Step 3. Inspect power cable connections inside switch box for
looseness or broken wire terminals.
Tighten loose connections. If any wire terminals
are broken, replace cable (paragraph 4-24b) or refer
to higher level of maintenance for repair.
4-18
