INSTALL ROTARY-WING HEAD
When nut (23) is fully seated, install socket (T29)
(24) on nut (23). Turn nut clockwise hand-tight.
Speed handle may be used to tighten
nut until torque begins to increase.
For forward head, install adapter with
marking FWD ROTOR THIS SIDE UP
on top. For aft head, install adapter
with marking AFT ROTOR THIS SIDE
UP on top.
Install reaction adapter (T28) (25) as follows:
Secure three reaction hooks (26) to adapter
(T28) (25) with INSTALLATION side out. Use
Position adapter (T28) (25) on top of hub
(10), with reaction hooks (26) against caps
(28) and with handwheels (29) on top.
Do not overtighten handwheels;
otherwise, damage to rotor hub or
adapter can occur.
Position three clamps (30) under top flange
(30.1) of hub (10). Tighten handwheels (29).