9
metal screws to secure the servo mounting blocks to
the aileron servo hatch. Use thin CA to harden the
screw threads.
❏ ❏
6. Connect a 24" [610mm] servo extension wire
to the aileron servo. Cut a piece of heat shrink tubing
in half and slide it over the servo connections. Shrink
the tubing by applying heat to the tubing.
❏ ❏
7. Use the string in the wing to pull the aileron
servo wire through the wing.
❏ ❏
8. Place the aileron servo hatch with the servo
in the wing. Be certain that the hatch is positioned
correctly as shown. Secure the hatches using six #2
x 3/8" [9.5mm] fl at head sheet metal screws. Use thin
CA to harden the screw threads.
❏
9. Go back to step 1 and install the right aileron
servo following the same procedure.
MOUNT THE RETRACTS
Install the left retract fi rst.
❏ ❏
1. Use a hex wrench to loosen the strut mounting
bolt and remove the strut. Slide two aluminum landing
gear door mounts onto the strut and reinstall the strut
in the strut mount.
❏ ❏
2. Trim the axle that is included with the Robart
retracts to 1-1/2" [38mm] long. File a fl at spot at the
end of the axle. Insert the axle through the included
5" [127mm] wheel and into the retract. Apply a drop of
threadlocker to the 10-32 x 3/16" [4.8mm] set screw,
included with the retract, and tighten the set screw
onto the fl at of the axle. Make sure that the wheel
rotates freely.
❏ ❏
3. Test fi t the retract unit with the wheel into the
wing. Position the retract so the wheel is centered in
the wheel well. Adjust the strut position in the retract
body as necessary to achieve the correct spacing all
the way around the wheel.
❏ ❏
4. 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 bolts at the top of the strut.
❏ ❏
5. 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.
