TM 1-1520-238-23
Change 8
5-129
5.26.
MAIN ROTOR PITCH HOUSING INSTALLATION – continued
5.26.3. Installation
a. Lubricate threads of bolts and nuts. Use
lubricant (item 114, App F).
(1) Allow lubricated hardware to cure for 6
HOURS at room temperature, or air dry for 30
MINUTES and then cure for 30 MINUTES at
150 F (66 C).
CAUTION
Do not allow strap pack to remain unsup-
ported when pitch housing is being
installed. Support strap pack in horizontal
position. Failure to do so may result in
damage to strap pack.
b. Install main rotor pitch housing (1) on feather-
ing bearing housing (2). Torque two nuts (3) and
(4) to 350 INCH-POUNDS.
(1) Slide pitch housing (1) over strap pack (5).
(2) Install one bushing (6), two washers (7), and
long bolts (8) in top of housing (2).
(3) Install two washers (9) and short bolts (10) in
bottom of housing (2).
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