TM 55-1520-240-23-9
11-33
NEUTRAL RIG CHECK
(Continued)
11-33
AFT ROTOR BLADE
NOTE
Rigging tool (T129) or protractor can
be used to measure rotor blade angle.
Using tool (T129), perform steps 34
thru 43. Using protractor, perform
steps 44 thru 48.
34.
Turn aft rotor hub (37). Position pitch link (44)
above aft left servocylinder (45).
35.
Working from aft left work platform, install tool
(T129) (31) on aft rotor shaft (46).
36.
Install plate (32) on vertical pin (47).
37.
Measure gap between ball (34) and plate (35) at
trailing edge. Gap must be 3/32 to 7/64 inch. If
not, adjust pitch link (44) (Task 5-94) then repeat
step 37.
38.
Remove tool (31) from pin (47).
39.
Turn rotor hub (37) to position link (48) above
servocylinder (45).
40.
Install tool (32) on pin (49).
41.
Repeat steps 37 thru 40 for vertical pins (49 and
50).
42.
Remove tool (32) from pin (50).
43.
Remove tool (31) from rotor shaft (46).
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