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AFT HANGER BEARING COUPLING REMOVAL/INSTALLATION | Up
TM-1-1520-238-23-4 Helicopter Attack AH-64A Apache (NSN 1520-01-106-9519) (EIC: RHA) Manual | Next
AFT HANGER BEARING COUPLING REMOVAL/INSTALLATION – continued |
TM 1-1520-238-23
6-49
6.9.
AFT HANGER BEARING COUPLING REMOVAL/INSTALLATION – continued
6.9.3. Removal
CAUTION
Do not allow entire weight of No. 4 tail
rotor drive shaft to be supported by for-
ward hanger bearing assembly. Support
aft end of drive shaft while aft hanger
bearing coupling is removed. If coupling
is to remain out, remove drive shaft and
secure tail rotor to prevent turning. Fail-
ure to support drive shaft may result in
damage to drive shaft and/or forward
hanger bearing assembly.
a. Remove aft hanger bearing coupling (1).
(1) Remove five bolts (2) attaching coupling (1)
forward flange (3) to No. 4 tail rotor drive
shaft (4).
(2) Remove five bolts (5) attaching coupling (1)
aft flange (6) to aft hanger bearing input
flange (7).
(3) Remove coupling (1).
b. Remove 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).
6.9.4. Cleaning
a. Clean removed and attaching parts or sur-
faces (para 1.47).
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