TM 1-1520-238-23
Change 5
11-97
11.14.
MAIN ROTOR PITCH LINK REMOVAL/INSTALLATION – continued
11.14.6. Installation
a. Install link (1) on pitch change horn (2). Torque
nut (5) 75 to 91 FOOT-POUNDS.
(1) Position link (1) so that left-hand threaded rod
end is on top side of barrel and alined with
pitch change horn (2).
(2) Install bushing (7) in pitch change horn (2).
CAUTION
Threads of bolt and nut shall be clean
and compound free. Contaminated
threads can cause improper torque,
which may cause damage to flight control
system.
NOTE
A maximum of four washers are allowed
under bolt head (if required) to ensure
bushing clamp-up and pin hole alines.
(3) Apply a light coat of corrosion preventive
compound to shank of bolt (4). Use corrosion
preventive compound (item 62A, App F).
(4) Install bolt (4) through washer(s) (6), bushing
(7), pitch change horn (2), and link (1).
(5) Check fit of self-retaining bolt (4) (para 11.1).
(6) Hold bolt (4). Install nut (5). Use open end
wrench.
(7) Hold bolt (4). Torque nut (5) to 75 FOOT-
POUNDS. Use torque wrench, socket, and
open end wrench.
(8) Increase torque to aline cotter pin hole, but do
not exceed 91 FOOT-POUNDS.
(9) Install new cotter pin (3).
(10) Apply sealing compound around bolt (4)
head, washer (7), and nut (5). Use sealing
compound (item 176, App F).
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TYPICAL-4 PLACES
4
7
6
2
3
5
1
M04-1729-8A
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ROTATED
