TM 55-1520-240-23-9
11-54
RIG FORWARD OR AFT SWASHPLATE AND SERVOCYLINDERS
(Continued)
11-54
Keep movement on aircraft
to minimum; otherwise, false
measurements can occur.
31.
Working from aft left work platform, position
protractor (26) on fixed swashplate (51). Align
protractor with LCT actuator (52) and LCT
connecting link (53). Measure and record angle
of swashplate. Remove protractor.
Do not rotate protractor between
measurements; otherwise, false
measurements will occur.
32.
Position protractor (26) on top of rotor shaft
(54). Align protractor with actuator (52) and link
(53). Measure and record angle of rotor shaft.
Remove protractor.
33.
Check angles measured in steps 31 and 32.
Step 31 angle must be less than step 32 angle.
Subtract angle of step 31 from angle of step 32.
Difference must be 2.6º to 3.0º. If within limit, go
to step 34. If not, within limits, perform steps 14
thru 26, then repeat steps 31, 32, and 33.
11-248
