TM 1-1520-238-23
6-46
Change 4
6.8.
NO. 4 TAIL ROTOR DRIVE SHAFT, DAMPER, AND ANTI-FLAIL SUPPORT
REMOVAL/INSTALLATION – continued
CAUTION
When installing No. 4 tail rotor drive shaft
to aft hanger bearing coupling flange en-
sure that bolts are installed through 0.250
INCH bolt holes on the aft hanger bearing
coupling flange. Do not install bolts
through any of 0.500 INCH lightening
holes. Installation of bolts through light-
ening holes will result in failure of drive
shaft and/or tail rotor coupling.
d. Install shaft (10) on coupling (11). Torque five
bolts (12) to 125 INCH-POUNDS.
(1) Aline bolt holes on aft end of shaft (10) with
bolt holes on coupling (11) flange.
(2) Install five bolts (12) through coupling (11)
flange and shaft (10).
(3) Torque five bolts (12) to 125 INCH-POUNDS.
Use torque wrench.
(4) Apply corrosion preventive compound to five
bolts (12). Use corrosion preventive
compound (item 62A, App F).
e. Install support (7) on deck (2). Torque nine
screws (8) to 20 INCH-POUNDS.
(1) Aline mounting holes on support (7) and
bracket (31) with mating holes on deck (2).
(2) Install nine screws (8) through washers (9),
support (7), bracket (31), and deck (2).
(3) Torque nine screws (8) to 20 INCH-POUNDS.
Use torque wrench, screwdriver bit holder,
and screwdriver bit.
(4) Apply corrosion preventive compound to nine
screws (8). Use corrosion preventive
compound (item 62A, App F).
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M04-441-22
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M04-441-23
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31
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