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AFT HANGER BEARING COUPLING REMOVAL/INSTALLATION – continued | 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
6-50
6.9.
AFT HANGER BEARING COUPLING REMOVAL/INSTALLATION – continued
6.9.5. Inspection
NOTE
Unless otherwise specified, the following
inspection procedures apply to hanger
bearing coupling, antiflail bearing sleeves,
aft hanger bearing input flange, and aft
end of No. 4 tail rotor drive shaft.
a. Check for cracks. None allowed.
b. Check for corrosion (para 1.49).
c. Check for nicks and scratches (para 6.1).
d. Check aft end of No. 4 tail rotor drive shaft for
dents (para 6.1).
e. Check hanger bearing coupling and aft hanger
bearing input flange for elongated bolt holes
(para 6.1).
f. Check aft hanger bearing input flange for
grease leakage (para 6.1).
g. Check hanger bearing coupling and aft end of
No. 4 tail rotor drive shaft for loose or dam-
aged nutplates (para 6.1).
6.9.6. Installation
a. Install bearing sleeves (9) and (8) in coupling
(1). Torque nut (10) to 35 INCH-POUNDS.
(1) Install bolt (13) in coupling (1).
(2) Install washer (12), bearing sleeves (9) and
(8), and washer (11) on bolt (13).
(3) Hand tighten nut (10) on bolt (13).
(4) Torque nut (10) to 35 INCH-POUNDS. Use
torque wrench.
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