TM 1-1520-238-T-6
Change 8
9–191
9–33.
POWER – IS NOT AVAILABLE TO ALL DC ESSENTIAL BUS 2 CIRCUIT BREAKERS
9–33
Tools:
Nomenclature
Part Number
Tool Kit, Electrical
SC518099CLA06
Repairer’s
Multimeter, Digital
AN/PSM-45
Personnel Required:
68X
Armament/Electrical Systems Repairer
References:
TM 1-1520-238-23
Equipment Conditions:
Ref
Condition
TM 1-1520-238-23
Electrical power
distribution cover removed
WARNING
Turn off power before detaching or
attaching wires and connectors. High
current 28 VDC or 115 VAC is present.
Failure to do so could result in death or
serious injury.
1. Detach wires from (A402):
TB1-2-D and TB1-2-F.
Check for open between wire end of (A402):
TB1-2-D and J4-J,
TB1-2-F and J4-F.
Does open exist?
YES
Repair open wire.
Go to paragraph 9–23.
NO
Go to step 2.
2. Check for open between wire ends of (A402):
W1-H and A4-G2.
Does open exist?
YES
Repair open wire.
Go to paragraph 9–23.
NO
Replace dc bus tie contactor
(TM 1-1520-238-23).
END OF TASK
