TM 1-1520-238-T-4
6–85
6–25.
OIL HOT MAIN XMSN 1 INDICATOR – LIGHTS
6–25
Tools:
Nomenclature
Part Number
Tool Kit, Electrical
SC518099CLA06
Repairer’s
Multimeter, Digital
AN/PSM-45
Personnel Required:
68F
Aircraft Electrician
References:
TM 1-1520-238-T-6
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. Check for open between J755–29 and J755–27.
Does open exist?
YES
Go to step 2.
NO
Replace main transmission oil
system 1 chip detector
(TM 1-1520-238-23).
2. Check for short between:
P18–65 and ground,
P456–A8 and ground,
J456–A8 and ground,
P755–29 and ground.
Does short exist?
YES
Repair shorted wire.
Go to paragraph 6–12.
NO
Refer to TM 1-1520-238-T-6 to
troubleshoot the pilot
caution/warning system.
END OF TASK
