TM 1-1520-238-T-7
10–263
10–108. EXT EMP INDICATOR – IS LIGHTED WITH EXT TK SWITCH SET TO OFF
10–108
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-T-6
TM 1-1520-238-23
Equipment Conditions:
Ref
Condition
TM 1-1520-238-23
Access provisions –
LW9 cover removed
Simulate auxiliary
fuel tanks with
jumper plugs
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 P18. Check for short between P174–A4
and ground.
Does short exist?
YES
Repair shorted wire between:
P18–51 and P914–B13,
J914–B13 and P174–A4.
Go to paragraph 10–100.
NO
Go to step 2.
2. On pilot FUEL panel, EXT TK switch is set to
OFF, check for continuity between (A131)J1–A4
and FUEL panel chassis.
Does continuity exist?
YES
Replace pilot FUEL panel
(TM 1-1520-238-23).
NO
Go to step 3.
3. Check for continuity between (A131):
J1–A4 and J1–A3.
Does continuity exist?
YES
Replace pilot FUEL panel
(TM 1-1520-238-23).
NO
Refer to TM 1-1520-238-T-6 to
troubleshoot pilot
caution/warning system.
END OF TASK
