User Manual

EN
15
IMPORTANT: Perform the Control Direction Test before performing control surface
centering.
While SAFE is inactive, mechanically center the control surfaces.
IMPORTANT: Correct operation of the SAFE system requires sub-trim and trim at 0.
After binding a transmitter to the receiver, set the trims and sub-trims to 0, ensure
the servo arms are in the correct positions, then adjust the linkages to center the
control surfaces.
• Turn the linkage clockwise
or counterclockwise until the
control surface is centered.
• Attach the linkage to the
servo arm or control horn
after adjustment
Control Surface Centering and Adjusting a Ball Link
The table to the right shows the factory settings for the control horns and servo
arms. Fly the aircraft at factory settings before making changes.
After flying, you may choose to adjust the linkage positions for the desired control
response. See the table to the right.
IMPORTANT: If control throws are changed from the factory settings, the
AR637T gain values may need to be adjusted. Refer to the Spektrum AR637T
manual for adjustment of gain values.
Horns Arms
Elevator
Rudder
Ailerons
Flaps
More control throw Less control throw
Control Horn and Servo Arm Settings