Great Planes Sequence F3A EP ARF - GPMA1575 - Manual (Page 8)

8
Cut off
unused
arms
Enlarge to
5/64" [2mm]
❏
4. Cut three arms from a four-armed servo arm for each
aileron servo. Enlarge the outer hole of the remaining arm
with a 5/64" [2mm] drill bit. Center the servos with your radio
system and install the servo arms to the servos perpendicular
to the servo case as shown with the arms pointing toward
the wing tip. Be sure to reinstall the servo arm screws into
the servos (use thread locking compound if the servo has a
metal output spline).
❏
5. Thread a nylon clevis 20 complete turns onto each 5"
[127mm] pushrod. Slide a silicone clevis retainer onto each
clevis and connect the clevises to the outer holes of two
control horns.
Hinge Line Hinge Line
CORRECT INCORRECT
Hin
❏
6. Position the control horns over the hardwood blocks
in the ailerons (if you cannot see them, hold the aileron
at a shallow angle in good lighting or use a small pin to
puncture the covering) using the position of the servo arms
as a guide. Align the holes in the control horns directly over
the aileron hinge line and mark the location of the control
horn mounting holes.
❏
7. Drill 1/16" [1.6mm] holes at the marks you made
through the hardwood blocks. Do not drill all the way through
the aileron! Apply a couple drops of thin CA glue to each
hole to harden the wood surrounding the holes. When the
glue has dried, install the control horns onto the ailerons
using four #2 x 1/2" [13mm] self-tapping screws.