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
Step 2.
Ensure that CONTACTOR switch is in CLOSED position.
Measure
voltage between S4-11 and S4-21.
If no voltage, replace contactor (paragraph 4-83c).
If voltage present, check voltage on back of VOLTAGE
meter.
If voltage
present,
replace
VOLTAGE
meter
(paragraph 4-75b). If no voltage, disconnect battery cable
plug connector.
Check continuity of wires U113C18 (M1(+)
to P2-F) and U114C18 (M1(-) to P2-E).
Replace as
necessary.
Reconnect battery cable plug connector.
Step 3.
Disconnect connector P2 from GECM.
Measure voltage between
P2-M and P2-L.
If 3-5 Vdc present, go to Step 4.
If no voltage,
check continuity of U141A18 (P2-M to P4-E)
and U142A18 (P2-L to P4-F).
If no continuity, repair or
replace as necessary.
If wires are good, replace EECM.
Step 4.
Remove backshell of connector P1.
Measure AC voltage between
P1-B and P1-C.
If voltage is present, replace GECM (paragraph 4-30).
If no voltage,
disconnect battery cable plug connector.
Check continuity of wires U161A12 (P1-B to P16-B) and
U162A12 (P1-C to P16-C).
Repair or replace as necessary.
If wires
are good,
refer to next higher level of
maintenance for generator replacement.
22.
AN ATTEMPT TO LOAD DOES NOT SHOW ANY INDICATION ON OUTPUT CURRENT METER.
Step 1.
Ensure that CONTACTOR CLOSED light is on and that VOLTAGE meter
indicates 20-35 Vdc.
If CONTACTOR CLOSED light is on and VOLTAGE meter indicates
20-35 Vdc, go to Step 2.
If CONTACTOR CLOSED light is not on, go to Malfunction 19.
4-43
