TM 1-1520-238-T-7
10–130.12
Change 5
10–35G.
PILOT AND CPG AMBER XFEED INDICATORS ARE LIGHTED WITH ENGINE 1 AND
10–35G
ENGINE 2 CROSSFEED VALVES AT NORMAL (ADB)
Tools:
Nomenclature
Part Number
Tool Kit, Electrical
SC518099CLA06
Repairer’s
Multimeter, Digital
AN/PSM-45
Personnel Required:
68X
Armament/Electrical Systems Repairer
One person to assist
References:
TM 1-1520-238-23
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. Check for 28 VDC at P939–11.
Is voltage present?
YES
Go to step 2.
NO
Go to step 5.
2. Check for open between (L2):
J1–11 and J12.
Does open exist?
YES
Replace engine 2 fuel
crossfeed/shutoff valve
(TM 1-1520-238-23).
NO
Go to step 3.
3. Check for open between P939–12 and
P442–B14.
Does open exist?
YES
Repair open wire.
Go to paragraph 10–17.
NO
Go to step 4.
4. Check for open between (A402):
J5–B14 and TB3–28/29–E,
TB2–17–F and TB3–28/29–K.
Does open exist?
YES
Repair open wire.
Go to paragraph 10–17.
NO
Replace terminal board
TB3–28/29 (TM 1-1520-238-23).
5. Check for open between
P939–11 and P442–B13.
Does open exist?
YES
Repair open wire.
Go to paragraph 10–17.
NO
Go to step 6.
6. Check for open between (A402):
J5–B13 and J22–A19.
Does open exist?
YES
Repair open wire between
(A402):
TB2–31–S and J5–B13,
TB2–31–R and J22–A19,
Go to paragraph 10–17,
or replace terminal board (A402)
TB2–31
(TM 1-1520-238-23).
NO
Go to step 7.
7. Check for open between P457–A19 and
P938–12.
Does open exist?
YES
Repair open wire.
Go to paragraph 10–17.
NO
Go to step 8.
