TM 1-1520-238-23
5-104
5.20.
MAIN ROTOR HUB RETENTION NUT INSTALLATION – continued
NOTE
Do not seal drive plate until limited test flight has been accomplished (step w).
q. Install main rotor drive plate (para 6.96).
NOTE
Do not install main rotor de-ice distributor or air data system mast prior to limited test flight.
P/N MS20073-03-05 bolts may be used in place of P/N MS20073-03-10 and P/N MS20073-03-11
bolts. Extra washers may not be required.
Use P/N AN960KD10 washers as required under P/N MS20073-03-11 bolts. Extra washers may not
be required.
r. Install main rotor drive plate cover (para 6.92).
s. Connect main rotor pitch links (para 11.14).
t. Install main rotor blades (para 5.4).
u. Perform main rotor blade phase adjustment (para 5.8).
v. Perform main rotor track and balance maintenance operational check (TM 1-1520-238-T).
w. Perform a limited flight test with ADS in OFF position (TM 55-1520-238-MTF).
x. Remove drive plate cover (para 6.92).
(1) Discard extra washers (if installed in step r).
y. Remove drive plate (para 6.96).
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