TM 55-1520-240-23-5
6-118
INSTALL FORWARD TRANSMISSION OIL COOLER IMPELLER (Continued)
6-118
4.
Torque locknut (4) and install tangwasher (5) as
follows:
a.
Install adapter assembly (6) in input shaft (2).
b.
Install spanner wrench (7) and torque wrench
(8) on locknut (4).
c.
Have helper place wood plank (9) across
nuts (10) as shown.
d.
Have helper brace plank (9) against
structure (11) to keep adapter assembly
(6) from turning. Torque locknut (4) to 180
foot-pounds.
e.
Install tangwasher (5) on locknut (4). If
tangs do not align with slots in nut, rotate
tangwasher 180
and install.
f.
If tangs do not align, increase torque on
locknut (4) in small steps until tangs align. Do
not torque over 230 foot-pounds.
g.
Remove adapter assembly (6), spanner
wrench (7), torque wrench (8), and wood
plank (9).
5.
Install retaining ring (12) as follows:
a.
Install end of retaining ring (12) under teeth
of locknut (4).
b.
Install entire length of retaining ring (12)
under teeth of locknut (4). Compress end of
ring as needed to install under locknut. Use
thin screwdriver (13) inserted in slot (14).
c.
Insert edge of screwdriver (13) in slot (14)
and push retaining ring (12) clockwise. Ring
shall expand under teeth of locknut (4) to lock.
INSPECT
FOLLOW-ON MAINTENANCE:
Install oil cooler fan shroud (Task 6-116).
Install forward transmission adapter assembly
(Task 6-8).
Install No. 1 and No. 2 drive shaft (Tasks 6-17 and
6-18).
Install oil cooler air inlet duct (Task 6-122).
Close forward transmission fairings (Task 2-2).
END OF TASK
6-457
