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LONGITUDINAL AND COLLECTIVE BELLCRANKS REMOVAL/INSTALLATION – continued | Up
TM-1-1520-238-23-7-1 Helicopter Attack AH-64A Apache (NSN 1520-01-106-9519) (EIC: RHA) Manual | Next
LONGITUDINAL AND COLLECTIVE BELLCRANKS REMOVAL/INSTALLATION – continued |
TM 1-1520-238-23
11-68
Change 6
11.9.
LONGITUDINAL AND COLLECTIVE BELLCRANKS REMOVAL/INSTALLATION – continued
CAUTION
·To prevent damage to self-retaining
bolts, press retention device fully down
when installing bolt.
·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
The maximum thickness for washer
stackup is 0.064 INCH for this bellcrank
pivot point.
b. Install bellcranks (1) and (2) on supports (3)
and (9). Torque two nuts (6) and (12) 175 to 200
FOOT-POUNDS.
(1) Install washer (16) between bellcranks (1)
and (2) on right support (9).
(2) Apply a light coat of corrosion preventive
compound to shank of bolts (5) and (11). Use
corrosion preventive compound (item 62A,
App F).
(3) Install bolt (11) through washer (15), bell-
crank (1), washer (16), bellcrank (2), and sup-
port (9).
(4) Install bolt (5) through washer (15), bell-
cranks (1) and (2), and left support (3).
(5) Hold two bolts (5) and (11).
(6) Install two washers (8) and (14), and nuts (6)
and (12).
(7) Support bellcrank (2) and bellcrank (1).
(8) Hold bolts (5) and (11). Use open end
wrench.
(9) Torque two nuts (6) and (12) to 175 FOOT-
POUNDS. Use torque wrench and socket.
(10) Increase torque to aline cotter pin hole, but do
not exceed 200 FOOT-POUNDS.
(11) Install two new cotter pins (4) and (10).
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M04-1727-6A
15
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5
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8
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16
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