TM 1-1520-238-23
Change 8
5-175
5.37.
MAIN ROTOR FEATHERING BEARING HOUSING REMOVAL/INSTALLATION – continued
5.37.6. Installation
a. Lubricate threads of stud (5) and nut (3). Use
lubricant (item 114, App F).
(1) Allow lubricated hardware to dry for 6
HOURS at room temperature, or air dry for 30
MINUTES and then cure for 30 MINUTES at
150 F (66 C).
b. Coat shank of stud (5) with corrosion preven-
tive compound. Use corrosion preventive
compound (item 62, App F).
c. Apply a continuous bead of sealing com-
pound to both faces of flooring plate (6) where
it mates with housing (1) and hub (2). Use
sealing compound (item 177, App F).
d. Install flooring plate (6) on stud (5).
e. Install housing (1) on stud (5). Torque nut (3) to
320 FOOT-POUNDS.
(1) Install housing (1) on stud (5) and aline with
hub (2) mating surface.
CAUTION
Allow sealant to hold washer in place
against the feathering bearing, otherwise
the washer will drop down and become
dished during installation and not allow
proper thread engagement of nut.
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