TM 55-1520-240-23-7
8-65
REPLACE FORWARD TRANSMISSION OIL PRESSURE SWITCHES
8-65
INITIAL SETUP
Applicable Configurations:
All
Tools:
Aircraft Mechanic’s Tool Kit, NSN 5180-00-323-4692
Torque Wrench, 30 to 150 Inch-Pounds
Materials:
Lockwire (E231)
Oil (E254)
Parts:
Packing
Personnel Required:
Medium Helicopter Repairer
Inspector
References:
TM 55-1520-240-23P
Equipment Condition:
Battery Disconnected (Task 1-39)
Electrical Power Off
Hydraulic Power Off
Left Forward Transmission Fairing Open (Task 2-2)
NOTE
Procedure is same to replace main or
auxiliary switch. Replacement of main
switch is shown here.
REMOVE SWITCH
1.
Disconnect connector (1) from switch (2).
2.
Remove lockwire from switch (2).
3.
Remove switch (2) from transmission (3).
4.
Remove packing (4) from switch (2).
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