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Great Planes Cessna 182 Skylane 40 ARF - GPMA1228 User Manual

Page 15

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on your transmitter in the center. This is called “centering”
the servos and will allow you to place the servo horns on the
servos in a neutral position. Attach the arms to the servos
using the following photo.

1. Trim the covering from the opening in the servo hatches.

Position the servos onto the aileron servo hatches so the
output shaft of the servo is centered in the opening in the
hatch. Position the 3/8" x 3/4" x 3/4" [9.5mm x 19mm x
19mm] hardwood servo mounting blocks onto the hatches
so there is a 1/32" [.8mm] gap between the blocks and the
servo. Mark the locations of the blocks onto the hatch, and
remove the servo. Use 30-minute epoxy to glue the blocks
to the hatch. Install the aileron servos using the grommets,
eyelets and screws that came with your radio system. After
“fishing” the servo wires through to the opening at the center
of the wing, plug them into a “Y” harness. Before permanently
securing the servo hatches into position, hook up your radio
and double-check the centering and direction of both of the
aileron servos.

2. With the servo hatches in position, drill 1/16" [1.5mm]

holes through the servo hatches and into the servo rails at
each of the four corners. (It may be necessary to trim the
hatch support rails as necessary to provide clearance for the
servo mounting blocks.) Remove the hatches, and enlarge
the holes in the hatches using a 3/32" [2.5mm] drill bit. Use
#2 x 3/8" sheet metal screws to install the servo hatches.
Trim the openings in the servo hatches as necessary to
allow the clearance for the servo arm.

3. Cut six hinges from the hinge material. Install the ailerons

using the hinges. Prepare the hinges and slots as shown on
page 8. Push the ailerons against the trailing edge of the
wing so there is approximately a 1/64" [.4mm] gap between
the leading edge of the aileron and the trailing edge of the
wing. Leave a gap of 1/16" [1.5mm] between the aileron and
the wing as shown in the previous photo to allow the
ailerons to move freely without binding against the wing.
Add six drops of thin CA to the center of the hinges on both
sides. Use a paper towel to absorb excess CA from the
hinge gap before it cures. Do not use CA accelerator; allow the
CA to cure slowly.

❏ ❏

4. Two 2-56 x 6" threaded end rods are supplied to

make the aileron pushrods. Thread a nylon clevis onto a
pushrod 14-turns and add a silicone retainer to the clevis.
Hold the horn in position on the bottom of the aileron. The
horn must align with the servo arm, and as shown in the
sketch. Mark the location of the mounting holes onto the
aileron. Drill 3/32" [2.5mm] mounting holes through the

2-56 (.074")

Pushrod Wire

Servo Horn

FasLink 1/16"

INCORRECT

CORRECT

HINGE LINE

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