TM 1-1520-238-23
6-29
6.6.
FORWARD HANGER BEARING COUPLING REMOVAL/INSTALLATION – continued
6.6.3. Removal
CAUTION
Do not allow entire weight of No. 4 tail
rotor drive shaft to be supported by aft
hanger bearing assembly. Support for-
ward end of drive shaft while forward
hanger bearing coupling is removed. If
coupling is to remain out, remove drive
shaft and secure tail rotor to prevent turn-
ing. Failure to support drive shaft may
result in damage to drive shaft and/or for-
ward hanger bearing assembly.
a. Remove forward hanger bearing coupling (1).
(1) Remove five bolts (2) attaching coupling (1)
aft flange (3) to No. 4 tail rotor drive shaft (4).
(2) Remove five bolts (5) attaching coupling (1)
forward flange (6) to hanger bearing output
flange (7).
(3) Remove coupling (1).
b. Remove two antiflail bearing sleeves (8) and
(9) from coupling (1).
(1) Remove nut (10).
(2) Remove washer (11), bearing sleeves (8) and
(9), and washer (12) from bolt (13).
(3) Remove bolt (13) from coupling (1).
6.6.4. Cleaning
a. Clean removed and attaching parts or sur-
faces (para 1.47).
GO TO NEXT PAGE
M04-0439-1
NO. 4
TAIL ROTOR DRIVE SHAFT
5
7
4
1
2
M04-0439-2
6
3
M04-0439-4
13
12
10
11
1
8
9
