REMOVE ROTARY-WING HEAD
Procedure is similar to remove
rotary-wing head with or without
blades attached. Removal of
rotary-wing head with blades removed
Task is similar for forward and aft
rotary-wing heads. Differences are
noted in text. With blades off, forward
rotary-wing head can be removed
with forward transmission package
installed in workstand.
PREPARE HEAD WITHOUT 50
If head (1) will be replaced, remove one sliding
bushing (2) from each lower lug (3).
PREPARE HEAD WITH 50
If head (1) will be replaced, do not remove
bushings (2 and 2.1) from each lower lug (3).
Bushings are part of rotor head.
Disconnect three pitch links (4) from pitch
housings (5) as follows:
Remove cotter pin (6).
Remove nut (7), washer (8), and bolt (9).
Disconnect pitch link (4).
Install bolt (9), washer (8), and nut (7) in