TM 55-1730-229-12
AG 320A0-OMM-000
TO 35C2-3-473-1
TM 1730-12/1
Organizational Troubleshooting (continued)
Table 4-2.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
(continued)
43.
If no continuity,
Check continuity
replace wire no.
To
From
P7A20
P12-T
P13-A
P8A20
P12-V
P13-B
P9A20
P13-C
P12-Y
X5A20
P12-D
P13-D
X6A20
P12-F
P13-F
P14A20
P12-H
K2-X1
P2D20
K2-A1
K2-B1
P2E20
K2-B1
P12-M
P2A4/0
K2-A1
Generator dc
+ terminal
P1A4/ON
Generator dc
DC ground
- terminal
stud
a. If no continuity, replace indicated wire, and perform
operational check.
b. If all continuity checks good, most probable cause of fault
is GCU. The generator is also a possible cause of fault.
Replace GCU (paragraph 4-54) or notify maintenance
supervisor.
Shut down unit and disconnect battery. Check load and dc output
Step 9.
power cables for possible shorts.
a. Correct load or replace cables as required.
b. If DC AMPS meter reading did not exceed 1070 during over
current fault, and load and output cables are not shorted,
replace GCU (paragraph 4-54).
c. Perform operational check.
Check CHRG/BAT FAULT indicator.
Step 10.
If indicator is lit (with engine running), see malfunction 3.
a.
If indicator is not lit, do step 11.
b.
4-71
