Page 18.26 Chapter 18 Track and Balance R66 Maintenance Manual SEP 2012
18-42 Cyclic Travel
A. Cyclic Left
1. Position collective stick full down. Position cyclic stick in the longitudinal neutral
(mid travel) position, and against left stop. Apply control frictions; sandbag cyclic
stick as required.
2. Rotate blades so pitch links are aligned with helicopter lateral axis.
3. Measure and record blade angles per Section 18-40 Part B to determine the values
below. Rotate blades 180° and align per step 2 as required.
BLUE BLADE RED BLADE
Pitch horn right ° Pitch horn right °
Pitch horn left + ° Pitch horn left + °
= ° = °
÷ 2 = ° ÷ 2 = °
4. Blade angles must average between 7.5° and 8.5° for cyclic left position. Adjust
swashplate forward left or right push-pull tube as required (one full turn = 0.6°).
B. Cyclic Right
1. Position collective stick full down. Position cyclic stick in the longitudinal neutral
(mid travel) position, and against right stop. Apply control frictions; sandbag cyclic
stick as required.
2. Rotate blades so pitch links are aligned with helicopter lateral axis.
3. Measure and record blade angles per Section 18-40 Part B to determine the values
below. Rotate blades 180° and align per step 2 as required.
BLUE BLADE RED BLADE
Pitch horn right ° Pitch horn right °
Pitch horn left + ° Pitch horn left + °
= ° = °
÷ 2 = ° ÷ 2 = °
4. Blade angles must average between 6.0° and 7.0° for cyclic right position. Adjust
swashplate forward left or right push-pull tube as required (one full turn = 0.6°).
NOTE
Remeasure cyclic left blade angles after making adjustment for
cyclic right blade angles.
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