ARMY
TM 5-6115-612-12
MARINE CORPS TM 6115-12/7
AIR FORCE
TO 35C2-3-471-1
NAVY
AG-320B0-0MM-000
4-10. GENERAL. (cont)
Table 4-3.
Organizational Troubleshooting - Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
26.
GENERATOR SET
Step 1.
27. GENERATOR SET
SHUTS DOWN UNDER FULL LOAD WITH OVERLOAD MALFUNCTION LIGHT.
Ensure that load on generator set did not exceed 11kW. This is
determined by multiplying the reading on the VOLTAGE meter by
the reading on the OUTPUT CURRENT meter.
If the result exceeds 11kW, inspect for shorts in load or
power cable.
Remove shorts and restart generator set.
If the result is 11kW or less, go to Malfunction 14.
SHUTS DOWN UNDER FULL LOAD WITH OVERVOLTAGE MALFUNCTION LIGHT.
Step 1.
Step 2.
WARNING
To prevent injury, ensure that
battery is
disconnected before
repairing or
replacing damaged
wires.
Determine if reading on VOLTAGE meter exceeded 35 Vdc.
If voltage exceeded 35 Vdc, go to Step 2.
If voltage did not exceed 35 Vdc, shut down generator set
and disconnect connector P4 from EECM. Place MASTER SWITCH
in RUN position.
If OVERVOLTAGE malfunction light comes
on,
replace
EECM (paragraph
4-64) .
If OVERVOLTAGE
malfunction light stays off, disconnect battery cable plug
connector.
Check wire
U138A18 (P4-B to
P2-B) for
continuity and shorts.
Repair as necessary.
If problem
still exists, replace GECM (paragraph 4-30). If generator
set still shuts down,
refer generator set to next higher
level of maintenance for testing of generator.
Ensure that VOLTAGE ADJUST knob was not set above 35 Vdc.
If knob set above 35 Vdc, restart and set knob in 20-35 Vdc
range.
If knob is set within range and set still shuts down, go to
Malfunction 15.
4-46
