TM 1-1520-238-23
6-56
Change 4
6.10.
AFT HANGER BEARING AND SUPPORT REMOVAL/INSTALLATION – continued
CAUTION
When installing hanger bearing to No. 5
tail rotor drive shaft, ensure that bolts are
installed through 0.250 INCH bolt holes
on hanger bearing flange. Do not install
bolts through any of 0.500 INCH lighten-
ing holes. Installation of bolts through
lightening holes will result in failure of
hanger bearing and drive shaft.
b. Install shaft (2) on flange (1). Torque five bolts (3)
to 125 INCH-POUNDS.
(1) Install five bolts (3) through flange (1) and
shaft (2).
(2) Torque five bolts (3) to 125 INCH-POUNDS.
Use torque wrench adapter and torque
wrench.
(3) Apply corrosion preventive compound to five
bolts (3). Use corrosion preventive compound
(item 62A, App F).
c. Inspect (QA).
d. Install aft hanger bearing coupling (para 6.9).
END OF TASK
M04-0445-4
2
1
3
NO. 4 TAIL
ROTOR
DRIVE
SHAFT
