Century Helicopter Products Swift Carbon 620SE, Instruction Manual

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There are three servos that are mounted on the left and right main frames. They work together to tilt the swashplate
producing the collective pitch, roll cyclic pitch (aileron control) and the fore-aft cyclic pitch (elevator control). Before be -
ginning this section you should center all servos using the radio. All servo arms must be set with linkages as pictured at
90 degree angles. All servos mount with M2.5x12 self tapping screws, M2 servo balls and M2 Nuts. IMPORTANT:
Century logo on all ball links must face OUTWARD as pictured.
The pitch servo will mount with a full servo arm on the low -
er opening of the left side of the main frame. The distance
between the steel balls (center of ball) on the servo arm
should be 12.5mm. Use the 4 servo screws and 2 servo
mounting tabs to mount the pitch servo with the servo arm
further toward the rear of the frame (pictured above).
Place two servo balls on to the pitch servo arm facing
inside toward the frame. Attach 2 of the 50mm linkages to
the servo arm balls then to the balls on the pitch bellcrank.
Use the 4 servo screws and 2 servo mounting tabs to
mount the elevator servo with the servo arm output fac -
ing toward the front inside of the frame (pictured above).
The distance from the center of the servo to the center of
the ball on the servo arm should be between 20-22mm
Place one servo ball to the pitch servo arm facing in -
side toward the frame. Attach two 50mm linkage to the
servo arm ball then to the balls on the elevator bellcrank
(CNE581).
Linkage:
Elevator Servo
to bellcrank (2)
=50mm
Linkage:
Pitch Servo to
bellcrank
(2) = 50mm
Linkage:
Elevator Servo
to bellcrank(2)
= 50mm
90
o
Century logo on all ball links must
face OUTWARD as pictured
90
o
Adjusting the Servos
8. Installing and Adjusting Control Components
The aileron servo will mount with a full servo arm on the lower
opening of the right side of the main frame. The distance be -
tween the steel balls (center of ball) on the servo arm should
be 12.5mm. Use the 4 servo screws and 2 servo mounting
tabs to mount the aileron servo with the servo arm further
toward the rear of the frame (pictured above).
Place two servo balls to the aileron servo arm facing inside
toward the frame. Attach 2 of the 50mm linkages to the servo
arm balls then to the balls on the aileron bellcrank.
Move the collective stick to its maximum position and watch
for any roll (aileron) or pitch (elevator) inputs. If an input is
found, the problem will be one of the following in the table.
The table describes the symptom and the steps to correct
them.
90
o
90
o
Linkage:
Elev Servo to
bellcrank
(2) = 50mm
Servo Arm:
Elevator Servo
center to hole.
= 20-22mm
Elevator Bellcrank needs to
be pushed up against bearing
(CNE582).
View: Left Side
View: Left Side
View: Top
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