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FORWARD HANGER BEARING AND SUPPORT REMOVAL/INSTALLATION | Up
TM-1-1520-238-23-4 Helicopter Attack AH-64A Apache (NSN 1520-01-106-9519) (EIC: RHA) Manual | Next
FORWARD HANGER BEARING AND SUPPORT REMOVAL/INSTALLATION – continued |
TM 1-1520-238-23
Change 8
6-33
6.7.
FORWARD HANGER BEARING AND SUPPORT REMOVAL/INSTALLATION – continued
6.7.3. Removal
CAUTION
Do not allow entire weight of No. 4 tail
rotor drive shaft and hanger bearing cou-
pling to be supported by aft hanger bear-
ing assembly. Support forward end of
drive shaft and coupling while hanger
bearing and support is removed. If hang-
er bearing and support are to remain out,
remove drive shaft and secure tail rotor to
prevent turning. Failure to support drive
shaft and coupling may result in damage
to drive shaft and/or aft hanger bearing.
a. Remove forward hanger bearing (1) from cou-
pling (2).
(1). Remove five bolts (3) attaching bearing (1) aft
flange to coupling (2).
(2). Support forward end of drive shaft (4).
b. Remove support (5) from deck (6).
(1). Remove four bolts (7) and washers (8) attach-
ing support (5) to deck (6).
(2). Remove support (5) from deck (6).
6.7.4. Cleaning
a. Clean removed and attaching parts and sur-
faces (para 1.47).
6.7.5. Inspection
NOTE
Unless otherwise specified, the following
inspection procedures apply to forward
hanger bearing and support and forward
hanger bearing coupling.
a. Check for cracks. None allowed.
b. Check for corrosion (para 1.49).
c. Check for nicks and scratches (para 6.1).
NOTE
The following inspection procedures ap-
ply to forward hanger bearing coupling
only.
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