Top Flite TOPA0410 - Manual (Page 43)

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❏ ❏ 8. Position a straightedge along the mark on the top of
the flap servo hatch. Mark the TE of the wing at the location
for the flap pushrod exit. Note: One of the pushrods will
need to be angled slightly to avoid the flap hinge.
❏ ❏ 9. Cut a 3/8" x 3/4" rectangle in the TE of the wing at
the mark.
❏ ❏ 10. Reinstall the inboard flap and mark on the LE of
the flap the location of the cut-out.
❏ ❏ 11. Drill a 1/16" [1.6mm] hole through the punch mark
on the die-cut 1/16" [1.6mm] plywood flap arm.
❏ ❏ 12. Cut a slot 1/4" [6.4mm] from the top of the flap, at
the mark made in step 10 on the inboard flap LE. Insert
the flap arm into the slot so that approximately 3/8"
[9.5mm] protrudes from the LE. Do not glue it in. It will be
glued in after the flaps are covered.
❏ ❏ 13. Thread a 4-40 nut onto a 4-40 x 8" pushrod (4"
of the pushrod was cut off in step 1). Slide a silicone
retainer over the pushrod, followed by a 4-40 metal clevis.
Thread the clevis onto the pushrod 14 turns. Tighten the
4-40 nut against the clevis. Attach the clevis to the flap
arm and slide the silicone retainer over the clevis.
❏ ❏ 14. Remove the flap servo hatch and reinstall the
flaps on the wing. Operate the flaps by moving the flap
pushrod from inside the servo compartment. Make sure
the flap arm does not bind on the TE of the wing.
❏ ❏ 15. Plug the flap servo into the receive and switch the
radio system on. Adjust the flap control on your transmitter
to the flap up position. Install the flap servo arm on the
flap servo so that the arm is in the forward position and
mark the servo arm location on the bottom of the wing.
❏ ❏ 16. With the flap in the up position, mark the flap
pushrod at the servo arm mark made in step 15. Make a
90 degree bend at the mark and cut the pushrod 3/8"
[9.5mm] past the bend. Enlarge the hole in the servo arm
to 3/32" [2.4mm], insert the flap pushrod through the
servo arm and secure it with a nylon Faslink pushrod
connector.
❏ 17. Return to step 2 of Install The Flap Controls and
finish the other flap.