TM 55-1520-240-23-5
6-117
REMOVE FORWARD TRANSMISSION OIL COOLER IMPELLER
6-117
INITIAL SETUP
Applicable Configurations:
All
Tools:
Aircraft Mechanic’s Tool Kit, NSN 5180-00-323-4692
Spanner Wrench
Wood Plank, 2 Inches x 4 Inches x 36 Inches
Forward Transmission Input Shaft Adapter Assembly
Materials:
None
Personnel Required:
Medium Helicopter Repairer (2)
Equipment Condition:
Battery Disconnected (Task 1-39)
Electrical Power Off
Forward Transmission Fairings Open (Task 2-2)
Oil Cooler Air Inlet Duct Removed (Task 6-121)
Oil Cooler Fan Shroud Removed (Task 6-115)
Forward Transmission Adapter Assembly Removed
(Task 6-5)
1.
Remove retaining ring (1) as follows:
a.
Insert screwdriver (2) in slot (3).
b.
Pull down on ring (1) to free it from teeth of
locknut (4).
c.
Peel entire length of ring (1) from under
locknut (4).
6-450
