Top Flite TOPA0906 - Manual (Page 11)

horn directly over the aileron hinge line and mark the
location of the control horn mounting holes.
o o 9. Drill 1/16" [1.6mm] holes at the marks you
made through the plywood plate inside the aileron.
Do not drill all the way through the aileron! Thread a
#2 x 3/8" [9.5mm] self-tapping screw through each
hole and back it out. Apply a couple drops of thin CA
glue to each hole to harden the wood. When the glue
has dried, install the control horn onto the aileron
using two #2 x 3/8" [9.5mm] self-tapping screws.
o o 10. Use tape or a small clamp to hold the
aileron in the neutral position. Make a mark on the
pushrod where it crosses the outer hole in the servo
arm. Make a 90° bend at the mark on the pushrod
and cut off the excess pushrod 3/16" [4.8mm] beyond
the bend. Attach the pushrod to the servo arm using
a nylon FasLink. Thread the clevis up or down on the
pushrod as necessary to center the aileron with the
servo arm centered. Slide the silicone clevis retainer
to the end of the clevis to secure it.
o 11. Repeat steps 1 to 10 for the left wing panel.
INSTALL THE FLAP SERVO & LINKAGE
o o 1. As you did with the aileron, glue the mounting
blocks to the underside of the flap servo hatch cover.
When the epoxy has cured, attach the flap servo to
the hatch cover using the hardware included with the
servo. Center the servo with your radio system and
install a servo arm at a 30° angle as shown. The flap
servo does not require a servo extension.
o o 2. Prepare the flap linkage by threading a
nylon clevis onto a 4" [102mm] pushrod 15 complete
turns. Install a silicone clevis retainer onto the clevis.
Measure 3-1/4" [83mm] from the clevis pin and make
a bend in the pushrod. Cut off the excess pushrod
3/16" [4.8mm] beyond the bend.
o o 3. Slide the pushrod through the access hole in
the wing and connect the bent end of the pushrod to
the outer hole in the flap control horn using a nylon
FasLink. Connect the clevis to the outer hole in the
flap servo arm. Put the flap servo hatch cover in place
onto the wing. While holding the hatch cover down,
use your radio system to test the operation of the flap.
Make any adjustments necessary to the position of
the clevis on the pushrod or the servo arm.
Servo Horn
1/16"
[1.6mm]
FasLink
2-56 (.074")
Pushrod Wire
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