Preparations; Assemble The Wing Panels - GREAT PLANES SU-31 Instruction Manual

PREPARATIONS

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1. If you have not done so already, remove the major parts
of the kit from the box and inspect for damage. If any parts
are damaged or missing, contact Product Support at the
address or telephone number listed in the "kit Inspection"
section on page 5.
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2. Carefully remove the tape on the horizontal stabilizer
and separate the elevators. Use a covering iron with a
covering sock on medium/high heat to tighten the covering if
necessary. Apply pressure over sheeted areas to thoroughly
bond the covering to the wood.

ASSEMBLE THE WINg PANELS

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1. The aileron hinges for the SU-31 have been preinstalled.
Please check them to be certain they are properly glued. If
any of them are loose simply add a few drops of thin CA glue
to the top and bottom of the hinge.
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2. Attach a 6" [152mm] servo extension to each aileron
servo and wrap the connection with electrical tape or 3/8"
[9.5mm] diameter heat shrink tubing (not included).
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3. Trim the covering from the aileron servo bays on the
undersides of the wing panels. Also trim the covering from
the control horn slots in the ailerons. Note: The servo bay
is on the inside portion of the servo mounting plate. There
is a lightening hole on the outboard portion of the servo
mounting plate that may easily be mistaken for the servo
mounting position.
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4. Insert the servo leads into the servo bays and pull them
through the wing ribs. The servos can be installed using the
hardware included with the servos or they can be glued in
place. If gluing the servos in place, remove the covering just
beneath the servo mounting tabs where they will contact
the wing. This will ensure that the servo will be glued to the
plywood servo bay, not just the covering. Roughing up the
underside of each servo mounting tab with sandpaper will
also improve glue adhesion. Glue the aileron servos into the
servo bays using epoxy or CA glue with the servo splines
facing the leading edge of the wings. After the glue has
cured, confirm that the servos are properly secured to the
wings and reinforce with extra glue if necessary.
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