TM 1-1520-238-T-5
7–100
7–24.
UTIL HYD PSI INDICATOR – IS NOT LIGHTED WITH NO UTILITY HYDRAULIC SYSTEM
7–24
PRESSURE INDICATED
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
Access provisions –
L200 panel 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. On utility hydraulic manifold,
check for open between (HP2):
J1–6 and J1–16.
Does open exist?
YES
Go to step 3.
NO
Go to step 2.
2. Check for open between:
P238–6 and GS631–C,
P238–16 and P18–72.
Does open exist?
YES
Repair open wire.
Go to paragraph 7–21.
NO
Replace pilot caution/warning
panel (TM 1-1520-238-23).
3. Remove utility manifold low pressure switch
(TM 1-1520-238-23). Check for open between
(HP2):
J1–6 and J7–A,
J1–16 and J7–C.
Does open exist?
YES
Replace utility hydraulic
manifold (TM 1-1520-238-23).
NO
Replace utility hydraulic low
pressure switch
(TM 1-1520-238-23).
END OF TASK
