TM 1-1520-238-23
6-83
6.14.
NO. 6 TAIL ROTOR DRIVE SHAFT REMOVAL/INSTALLATION – continued
6.14.4. Cleaning
a. Clean removed and attaching parts or surfaces (para 1.47).
6.14.5. Inspection
NOTE
Unless otherwise specified, the following inspection procedures apply to No. 6 tail rotor drive shaft,
intermediate gearbox output coupling flange, and tail rotor gearbox input coupling flange.
a. Check for cracks. None allowed.
b. Check for corrosion (para 1.49).
c. Check for nicks and scratches (para 6.1).
d. Check drive shaft for dents (para 6.1).
e. Check drive shaft for loose or damaged nutplates (para 6.1).
f. Check intermediate gearbox output coupling flange and tail rotor gearbox input coupling flange for
elongated bolt holes and erosion of aluminum bronze coating (para 6.1).
g. Check intermediate gearbox output coupling and tail rotor gearbox input coupling for clogged dia-
phragm vents, and sharp bends, nicks, or scratches in diaphragm or diaphragm guard (para 6.1).
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