TM 55-1520-240-23-5
6-181.1
REPLACE COMBINING TRANSMISSION OIL COOLER BYPASS VALVE
6-181.1
INITIAL SETUP
Applicable Configurations:
All
Tools:
Aircraft Mechanic’s Tool Kit, NSN 5180-00-323-4692
Wrench, 1 Inch
Open End Wrench, 1-1/2 Inch
Container, 2 Quart (2)
Hose, 1 Inch ID, 36 Inches Long
Funnel
Materials:
Cloths (E120)
Lockwire (E231)
Oil (E254)
Parts:
Packings (2)
Personnel Required:
Medium Helicopter Repairer
Inspector
Equipment Condition:
Battery Disconnected (Task 1-39)
Electrical Power Off
Pylon Hinged Fairing Open (Task 2-2)
DRAIN OIL COOLER
1.
Remove lockwire from drain plug (1).
2.
Remove drain plug (1) and packing (2) from oil
cooler (3). Hold funnel under port (4). Drain oil
through hose into container. Remove hose and
funnel.
3.
Install drain plug (1) and packing (2). Lockwire
plug to oil cooler (3). Use lockwire (E231).
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