TM 55-1520-240-23-9
11-125
REMOVE THRUST OR PITCH VISCOUS DAMPER CONNECTING LINK
11-125
INITIAL SETUP
Applicable Configurations:
All
Tools:
Aircraft Mechanic’s Tool Kit, NSN 5180-00-323-4692
Materials:
Paper Tags (E264)
Personnel Required:
Medium Helicopter Repairer
References:
TM 1-1520-253-23
Equipment Condition:
Battery Disconnected (Task 1-39)
Electrical Power Off
Hydraulic Power Off
Closet Acoustic Blanket Removed (Task 2-107)
Closet Backup Panel Removed (Task 2-2)
NOTE
If a crack in the connecting link is
suspected during disassembly, refer
to TM 1-1520-253-23.
NOTE
Procedure is same to remove thrust or
pitch viscous damper connecting link.
Thrust connecting link is shown here.
1.
Tag thrust damper connecting link (1). Remove
cotter pin (2), nut (3), two washers (4) and bolt
(5), from idler bellcrank (6). Disconnect link from
bellcrank.
2.
Install bolt (5), two washers (4), and nut (3)
loosely in bellcrank (6).
3.
Remove cotter pin (7), nut (8), two washers (9),
and bolt (10) from link (1) and damper arm (11).
Remove link.
4.
Install bolt (10), two washers (9), and nut (8)
loosely in arm (11).
FOLLOW-ON MAINTENANCE:
None
END OF TASK
11-577
