Install The Radio System; Install The Elevator Servo - GREAT PLANES YAK-55M Yakovlev Instruction Manual

INSTALL THE RADIO SYSTEM

Install the Elevator Servo

❏
1. Use adhesive-backed hook and loop material to mount
the receiver to the aft end of the battery tray former. Connect
the ESC to the receiver.
❏
2. Cut the covering away from the elevator servo opening
on the right side of the fuselage, in front of the stabilizer.
❏
3. Install a 16" [406mm] servo extension to the elevator
servo. Secure the extension to the lead with tape, a piece of
shrink tube or some other method to keep them from coming
unplugged.
❏
4. Install the elevator servo into the servo opening following
the same procedure used to install the aileron servos. Connect
the servo to the receiver, install and center the servo arm.
❏
5. Thread a nylon clevis 16 turns onto a 2-56 x 10"
[254mm] wire pushrod. Connect the clevis to a nylon
control horn. Using the elevator pushrod, position the control
horn in line with the servo arm. When positioned properly
the control horn will rest on a hardwood plate in the elevator.
Mark the location of the mounting holes onto the elevator.
Drill a 3/32" [2.4mm] hole on the marks, drilling through the
elevator. Attach the control horn to the elevator using two
2-56 x 5/8" [16mm] machine screws and the control horn
back plate.
❏
6. Slide a silicone clevis retainer over the clevis. With the
elevator servo and the elevator centered, mark the elevator
pushrod where it crosses the elevator servo arm. Make a
90° bend at the mark. Cut the pushrod 3/8" [9.5mm] past the
bend. Attach the pushrod to the elevator servo arm with a
nylon Faslink.
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