MAIN ROTOR HEAD REMOVAL/INSTALLATION continued
a. With assistants, install head (1) on mast (2)
b. Inspect (QA).
c. Install main rotor hub retention nut (para 5.20).
d. Install main rotor brush, electrical holder, and
pitch web electrical lead (para 5.48).
e. Install secondary main rotor scissor (para
f. Install load bearing main rotor scissor (para
g. Remove maintenance crane (para 1.105).
h. Secure access doors T250L, T250R, T290L,
T290R, and L325 (para 2.2).
If the main rotor head was removed to
facilitate other maintenance and the
same main rotor head is re-installed (with
no other maintenance accomplished on
the head), the equipment conditions for
paragraph 5.8 to perform the collective
and cyclic flight controls rigging mainte-
nance operational check is not required.
i. Perform main rotor blade phase adjustment
END OF TASK