TM 9-6115-647-14&P
Table 4-2. Troubleshooting.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
2.
BOTH POWER UNITS FAIL TO PROVIDE POWER TO ICC/CRG (cont).
Step 4.
Disconnect power source jumper cable from generator battery. Disconnect control cable from
PDU connector J 6, and perform continuity test on cable (paragraph 4-20).
a.
Replace defective control cable.
b.
If cable is not defective, go to step 5.
Step 5.
Disconnect power/control cable from ICC/CRG and PDU connector J1, and perform continuity
test on cable (paragraph 4-19).
Replace defective cable
3.
APPROPRIATE GENERATOR ON-LINE INDICATOR DOES NOT LIGHT AT ICC/CRG CONTROL
PANEL.
Step 1.
Disconnect control cable from ICC/CRG and PDU connector J6, and perform continuity test
on
cable (paragraph 4-20).
a.
Replace defective cable.
b.
If cable is not defective, go to step 2.
Step 2.
Disconnect control cable from PDU connector J6 and disconnect P8 from J8 on K1 contractor
(for primary power unit), or P9 from J9 on K2 contractor (for standby unit) . Using multimeter,
check continuity between J6 pin G and TB1-9 and between TB1-9 and P8 pin H (for primary
power unit), or between J6 pin G and TB1-10 and between TB1-10 and P9 pin H (for standby
unit).
a.
Replace defective J6 wiring harness (paragraph 4-24 b), P8 wiring harness (paragraph
4-
24 d), or P9 wiring harness (paragraph 4-24.e), as applicable.
b.
If cables are not defective, go to step 3.
Step 3.
Disconnect P3 from J3 (for primary power unit) or P11 from J3 (for standby unit) . Using
multimeter, check continuity between P3 pin H and TB1-17 and between TB1-17 and P8 pin G
(for primary power unit), or between P11 pin H and TB1-18 and between TB1-18 and P9 pin G
(for standby unit).
a.
If continuity does not exist between P3 pin H and TB1-17, replace P3 cable (paragraph
4-
22).
4-16
