TM 55-1520-240-23-4
5-23
INSTALL PITCH-VARYING HOUSING (Continued)
5-23
9.
Apply light coat of antiseize (E75) to tie-bar pin
(11). Wear gloves (E186).
10.
Install pin (11) in hole (4). Tap pin to seat it.
11.
Install bolt (12), washers (13, 14, and 15), and
nut (16). Torque nut to 35 inch-pounds.
12.
Apply sealant (E336) around washers (13 and
14). Wear gloves (E186).
12.1.
Check weight cavity drain hole in pitch-varying
housing to ensure it is clean of debris. Use pipe
cleaner (E469).
CAUTION
Do not install wrong balance weights
on a pitch housing. Use of wrong
balance weights will cause head to be
unbalanced.
13.
Remove tag (17). Install weights (18, 19, and
20), washer (21) and nut (22). Torque nut to 35
inch-pounds.
5-116
Change 2