TM 1-1520-238-T-7
11–125
11–18.
TRIM CIRCUIT BREAKER DOES NOT STAY CLOSED – FORCE TRIM RELEASE
11–18
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 box 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 and tag wires from (A402): TB2–29–E,
TB2–29–F, TB2–29–G, and TB2–29–H. Detach
P431, check for short between: P686–116 and
ground.
(A402):
J11–B14 and ground,
J11–B15 and ground,
J27–A7 and ground,
TB3–7/8–A and ground.
Does short exist?
YES
Repair shorted wire between:
P431–A7 and P686–116.
(A402):
J11–B15 and TB2–29–E,
J11–B14 and TB2–29–F,
TB2–29–G and TB3–7/8–A,
TB2–29–H and J27–A7.
Go to paragraph 11–12.
NO
Go to step 2.
2. Check for short between P423–B15 and ground.
Does short exist?
YES
Go to step 4.
NO
Go to step 3.
3. Detach P118, check for short between
P423–B14 and ground.
Does short exist?
YES
Repair shorted wire between
P423–B14 and J118–7.
Go to paragraph 11–12.
NO
Replace CPG cyclic stick
(TM 1-1520-238-23).
4. Detach (A401)P113, check for short between
P423–B15 and ground.
Does short exist?
YES
Repair shorted wire between
P423–B15 and J113–A11.
Go to paragraph 11–12.
NO
Replace pilot cyclic stick
(TM 1-1520-238-23).
END OF TASK
