TM 55-1520-240-23-9
11-33
NEUTRAL RIG CHECK
(Continued)
11-33
FORWARD ROTOR BLADE
NOTE
Rigging tool (T129) or protractor can
be used to measure rotor blade angle.
Using tool (T129), perform steps 20
thru 28. Using protractor, perform
steps 29 thru 33.
20.
Working from forward left work platform, install
tool (31) on forward rotor shaft (30).
21.
Install plate (32) on vertical pin (33).
22.
Measure gap between ball (34) and plate (35)
at leading edge. Gap must be 7/16 to 29/64
inch. If not, adjust pitch link (36) (Task 5-94),
then repeat step 22.
23.
Remove tool (32) from pin (33).
24.
Turn rotor hub (37) to position pitch link (38)
above forward right servocylinder (39).
25.
Install tool (32) on pin (40).
26.
Repeat steps 22 thru 25 for vertical pins (40 and
41).
27.
Remove tool (32) from pin (41).
28.
Remove tool (31) from rotor shaft (30).
11-116