TM 1-1520-238-23
6-22
6.4.
MAIN TRANSMISSION TAIL ROTOR COUPLING REMOVAL/INSTALLATION – continued
6.4.5. Inspection
NOTE
Unless otherwise specified, the following
inspection procedures apply to tail rotor
coupling, antiflail bearing sleeves, main
transmission output flange, and forward
end of No. 3 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 forward end of No. 3 tail rotor drive
shaft for dents (para 6.1).
e. Check tail rotor coupling flanges and main
transmission output flange for elongated
bolt holes (para 6.1).
f. Check tail rotor coupling flange and forward
end of No. 3 tail rotor drive shaft for loose or
damaged nutplates (para 6.1).
6.4.6. Installation
a. Install bearing sleeves (7) and (6) in coupling
(1). Torque nut (8) to 35 INCH-POUNDS.
(1) Install bolt (11) in coupling (1).
(2) Install washer (10), bearing sleeves (7) and
(6), and washer (9) on bolt (11)
(3) Install nut (8) on bolt (11).
(4) Torque nut (8) to 35 INCH-POUNDS. Use
torque wrench.
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M04-0435-4
