NEUTRAL RIG CHECK
Keep movement on aircraft
to minimum; otherwise, false
measurements may result.
Working from aft left work platform, position
protractor (19) on fixed swashplate (20). Align
protractor with LCT actuator (21) and LCT
connecting link (22). Measure and record angle
of swashplate. Remove protractor.
Make sure the protractor is not turned
180º after angle is recorded for
swashplate and moved to rotor shaft.
Maintain same orientation when
measuring rotor shaft.
Position protractor (19) on top of rotor shaft
(23). Align protractor with actuator (21) and link
(22). Measure and record angle of rotor shaft.
Check angles measured in steps 13 and 14.
Step 13 angle must be less than step 14 angle.
Subtract angle of step 13 from angle of step 14.
Angle must be 2.6º to 3.0º. If not, adjust LCT
fixed connecting link (Task 11-225), then repeat
steps 13, 14, and 15.
FORWARD FIXED SWASHPLATE
Working from forward left work platform, measure
distance between forward swashplate baIl (24)
and lower stop (25) of slider guide (26). Distance
must be 2-15/32 to 2-19/32 inches. If not,
inspect swashplate ball and slider (Task 5-114).