TM 55-1520-240-T
8-3.6.1 NO. 1 ENGINE OIL PRESS INDICATOR DOES NOT INDICATE 20 PSI MINIMUM OR POINTER FLUCTUATES MORE THAN 5 PSI
8-3.6.1
FAULT ISOLATION PROCEDURE
Materials:
INITIAL SETUP
None
Applicable Configurations:
Personnel Required:
Aircraft Electrician
With 74
Medium Helicopter Repairer
Tools:
References:
Aircraft Mechanic's Tool Kit,
TM 55-1520-240-23
NSN 5180-00-323-4692
TM 1-2840-265-23
Electrical Repairer's Tool Kit,
NSN 5180-00-323-4915
Equipment Condition:
Multimeter
TM 55-1520-240-23:
Synchro Test Set,
Battery Connected
NSN 4920-00-556-8108
Electrical Power On
Direct Reading Pressure Gage, 0 to 200 Psi
Hydraulic Power Off
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8-54.2 Change 19