Great Planes Edge 540 EP ARF - GPMA1550 - Manual (Page 8)

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5. 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.
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6. 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 installing the servos in place with screws, thread a
mounting screw (included with the servo) into each hole you
drilled and remove it. Apply a couple drops of thin CA glue to
each hole to harden the wood. If gluing the servos in place,
slit or puncture 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 LE of the wings. After the
glue has cured, confi rm that the servos are properly secured
to the wings and reinforce with extra glue if necessary.
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7. Locate two double-sided servo arms that fi t the output
splines of your aileron servos and four adjustable clevises.
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8. Temporarily connect your aileron servos and battery
pack to your radio and center the servos and trim levers on
the transmitter. Test fi t the double-sided servo arms parallel
to the aileron hinge line. If the servo arm does not fi t onto
the servo spline parallel to the hinge line, remove it from the
servo and rotate it 180°. Decide which way fi ts best (closest
to parallel) and cut off the arm that isn’t used. The remaining
arm should point toward the wing tip. Be sure to make a left
and right servo arm.
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9. Fit an adjustable clevis onto both 2 x 90mm carbon
fi ber aileron pushrods. Push/rotate the clevis from each
pushrod into the outer holes of the servo arms.
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