TM 55-1730-229-12
AC 320A0-OMM-000
TO 35C2-3-473-1
TM 1730-12/1
Table 4-2.
Organizational Troubleshooting (continued)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
(continued)
45.
If all continuity checks good, replace DC AMPS meter 1M12
b.
c. Perform opertional check.
DC OVER CURRENT INDICATOR DOES NOT LIGHT WHEN DC AMPS METER READS MORE THAN
46.
1070 AMPS.
Set DC POWER switch off. Shut down engine and disconnect battery.
Step 1.
Check diode 1CR10 (see malfunction 99).
a. Replace diode if defective (paragraph 4-108.b), and perform
operational check.
If diode is good, do step 2.
b.
Step 2.
Remove battery charger access cover. Disconnect main harness
connector P5 from control panel connector J5, and disconnect harness
connector P12 from GCU connector. Check for continuity between the
following points (see FO-5):
If no continuity,
Check continuity
replace wire no.
To
From
P15A20
P12-E
P5-19R
P18A20
P12-J
R1(+)
P17A20
P12-Y
R1(-)
If no continuity, replace indicated wire.
a.
If all continuity checks good, the GCU is defective or the DC
b.
AMPS meter is reading high. Replace GCU (paragraph 4-54) or
DC AMPS meter (paragraph 4-107.a), or notify maintenance
supervisor.
c. Perform operational check.
DC VOLTAGE FAULT INDICATOR DOES NOT LIGHT FOLLOWING A DC OVER CURRENT FAULT.
47.
If off, set DC POWER switch off.
Note DC POWER ON indicator.
Step 1.
a. Push PRESS TO TEST switch. Replace bulb if bad. If bulb is
good, do step 2.
