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)
55.
If switch tests good, do step 4.
b.
Remove battery charger access cover. Lower control panel (paragraph
Step 4.
connector J7, and disconnect harness connector P11 (32, figure 4-38)
from ac contactor K1. Check for continuity between the following
points (see FO-6 sheet 2):
If no continuity,
Check continuity
replace wire no.
From
To
X37B20
J7-17L
1S9-A1-C
X34B20
1M9(-)
J7-15R
X37A20
P7-17R
P11-E
X34A20
P11-F
P7-15L
1S9-A2-C
1M9(+)
X40A20
a. If no continuity, replace indicated wire and perform
operational check.
b. If all continuity checks good, do step 5.
Test ac contactor K1 (malfunction 95).
Step 5.
a. Replace contactor if defective (paragraph 4-53).
b. If contactor tests good, replace AC %LOAD meter 1M9
c. Perform operational check.
Test AC PHASE SELECT switch 1S9 (malfunction 79).
Step 6.
a. Replace switch if defective (paragraph 4-104.b), and perform
operational check.
b. If switch tests good, do step 7.
Test current transformers T2 through T4 as follows:
Step 7.
a. Remove battery charger access cover. Disconnect main harness
connector P7 from control panel connector J7.
4-85
