TM 55-1520-240-23-9
11-136
ADJUST YAW BALANCE SPRING
11-136
INITIAL SETUP
Applicable Configurations:
All
Tools:
Aircraft Mechanic’s Tool Kit, NSN 5180-00-323-4692
Surface Gage
Materials:
Pencil (E271)
Personnel Required:
Medium Helicopter Repairer
Inspector
Equipment Condition:
Battery Connected (Task 1-39)
Electrical Power On
Hydraulic Power On
Closet Acoustic Blanket Removed (Task 2-107)
Closet Backup Panel Removed (Task 2-2)
1.
Press CENTERING DEVICE RELEASE button
(1) on grip (2) of copilot’s control stick (3).
Position copilot’s and copilot’s control pedals (4)
in center adjustment hole.
2.
Position surface gage (5) on cockpit floor (6) with
scriber (7) near side of right pedal post (8). Mark
position of scriber point on post with pencil. Use
pencil (E271).
3.
Press left pedal (4) fully forward. Release pedal.
4.
Check right pedal (4). Pedal must return to
marked position with no drift. If pedal returns
to marked position with no drift, go to step 9.
If pedal is forward or aft of marked position,
perform steps 5 thru 9.
5.
Repeat steps 2, 3, and 4 for left pedal.
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