Top Flite TOPA0708 - Manual (Page 10)

10
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3. Temporarily attach the retract to the wing with
two 6-32 x ¾" [19mm] machine screws. Extend the
retract. View the wheel from directly above. Adjust
the strut so that the wheel is parallel to the root of the
wing. Lock the strut in position by applying a drop of
threadlocker to the threads and securely tightening the
bolt at the top of the strut.
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4. Double check that the wheel will fully retract into
the wing. Extend the retract to make sure it does not
interfere with any part of the wing and that the retract
is operating smoothly.
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5. Cut a 12" [305mm] piece of red pressure tubing
and a 14" [356mm] piece of purple pressure tubing from
the tubing included with the Robart Air Control Kit (not
included). Connect the red tube to the side of the air
cylinder and the purple to the end of the air cylinder.
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6. Route the pressure tubing through the ribs and
out the hole in the top of the wing. Tape the pressure
tubing to the top of the wing.
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7. Secure the retracts in the wing. Apply a drop
of threadlocker to the threads of four 6-32 x ¾" [19mm]
machine screws and #6 lock washers before threading
them into the retract plate.
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8. Set the retract cover over the retract and drill
a 1/16" [1.6mm] pilot hole using the holes in the cover
as a guide.
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9. Mount the retract cover to the wing with fi ve #2
x 3/8" sheet metal screws and fi ve #2 fl at washers. Use
thin CA to harden the holes.
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10. Cut out the landing gear cover template from
the back of the instruction manual. Tape the template to
the top of the left landing gear cover. Center the landing
gear cover over the retract. Check that the two marks
are aligned with the mounting holes on the retracts.
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11. Drill 1/16" [1.6mm] pilot holes at the two
locations shown on the template. Enlarge the holes