TM 1-1520-238-T-5
7–118
7–38.
UTIL HYD INDICATOR – DOES NOT INDICATE 3000 PSI ( APU OPERATING )
7–38
Tools:
Nomenclature
Part Number
Tool Kit, Aircraft
SC518099CLA01
Mechanic’s
Personnel Required:
67R
Attack Helicopter Repairer (2)
References:
TM 1-1520-238-T-4
TM 1-1520-238-T-8
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. Start APU (TM 1-1520-238-23).
Is APU shaft 7 turning?
YES
Go to step 2.
NO
Refer to TM 1-1520-238-T-8 to
troubleshoot APU system.
2. Shutdown APU (TM 1-1520-238-23). Remove
utility hydraulic pump (TM 1-1520-238-23).
Is utility hydraulic pump shaft sheared?
YES
Replace utility hydraulic pump
(TM 1-1520-238-23).
NO
Refer to TM 1-1520-238-T-4 to
troubleshoot drive system.
END OF TASK
