TM 1-1520-238-T-5
7–104
7–27.
OIL LOW UTIL HYD INDICATOR – IS LIGHTED
7–27
Tools:
Nomenclature
Part Number
Tool Kit, Electrical
SC518099CLA06
Repairer’s
Multimeter, Digital
AN/PSM-45
Personnel Required:
68X
Armament/Electrical Systems Repairer (2)
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. Detach P18.
Is OIL LOW UTIL HYD indicator lighted?
YES
Replace pilot caution/warning
panel (TM 1-1520-238-23).
NO
Go to step 2.
2. Check for short between:
P18–67 and ground,
P440–A7 and ground,
P442–A18 and ground,
P238–20 and ground.
(A402):
J16–A7 and ground,
TB3–7/8–C and ground,
TB3–7/8–H and ground,
TB3–17–E and ground,
TB3–17–H and ground,
J5–A18 and ground,
TB3–17–G and ground,
TB3–7/8–K and ground.
Does short exist?
YES
Repair shorted wire.
Go to paragraph 7–21.
NO
Go to step 3.
3. Check for short between (A402)TB3–7/8 and
ground.
Does short exist?
YES
Replace (A402)TB3–7/8
(TM 1-1520-238-23).
NO
Replace utility hydraulic
manifold (TM 1-1520-238-23).
END OF TASK
