ARMY
TM 5-6115-612-12
MARINE CORPS TM 6115-12/7
AIR FORCE
T0 35C2-3-471-1
4-10. GENERAL. (cont)
NAVY
AG-320B0-0MM-000
Table 4-3.
Organizational Troubleshooting - Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 2.
Disconnect connector P4 from EECM. Restart generator set. Do
not apply load.
If generator set shuts down, replace EECM (paragraph 4-64).
If generator set does not shut down, place MASTER SWITCH in
OFF position.
Check for continuity and shorts between P4-B
and P4-E.
Repair or replace wires as necessary.
If no
shorts and continuity is good, replace GECM (paragraph
4-30).
18.
INTERMITTENT OR NO INDICATION OF BATTERY CHARGE CURRENT ON BATTERY CHARGING
METER.
WARNING
To prevent injury, ensure that
battery is
disconnected before
repairing or
replacing damaged
wires.
Step 1.
Test battery (paragraph 4-27a).
Recharge or replace battery as necessary.
If battery is
good, go to Step 2.
Step 2.
With generator set running at READY TO LOAD, disconnect battery
cable plug connector.
Measure voltage at connector.
Voltage
should be 25-28 Vdc.
If voltage is not present, is low, or is unstable, go to
Step 3.
If voltage is correct and stable, check continuity of
following wires.
U111A18 (R1-C to TB3-16)
U112A18 (R1-D to TB3-15)
U111B18 (TB3-16 to M3(+)) U112B18 (TB3-15 to M3(-))
Repair or replace wires as necessary. If wires and continuity
are good, inspect 20 amp current shunt (R1) (paragraph 4-33a)
and BATTERY CHARGING ammeter (M3) (paragraph 4-69). Replace as
necessary.
4-39
