TM 55-1520-240-T
7-1.22 NO. 2 HYD FLT CONTR (WITHOUT 74 ) HYD 2 (WITH 74) CAPSULE COMES ON WHEN NO. 1 SYSTEM DEPRESSURIZED THEN SELECTED
7-1.22
FAULT ISOLATION PROCEDURE
INITIAL SETUP
References:
TM 55-1520-240-23
Applicable Configurations:
All
Equipment Condition:
TM 55-1520-240-23:
Tools:
Battery Disconnected
Electrical Repairer's Tool Kit
Electrical Power Off
NSN 5180-00-323-4915
Hydraulic Power Off
Multimeter
Materials:
None
Personnel Required:
Medium Helicopter Repairer
Aircraft Electrician
LOCATE
GROUND
FAULT
ON
WIRE
W639-24-20, W645-14-22, W697-117-22,
W668-116-22 OR W528-8-20 BETWEEN
NO. 1 SYSTEM PRESSURE SWITCH
PLUG 033P1 AND NO. 2 SYSTEM PILOT
VALVE PLUG G033P2. REPAIR OR
REPLACE WIRE AS REQUIRED.
END OF TASK
7-66 Change 17
