Great Planes Extra 300S 40 ARF MonoKote - GPMA1240 - Manual (Page 16)

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6. Cut a piece of 3" black heat shrink tubing into two
1-1/2" pieces. Secure the elevator pushrod wires to the
pushrod dowel with a 1-1/2" piece of heat shrink. Use a
match or lighter flame or a heat gun to shrink the tubing.
After the tubing cools, permanently bond the tubing and the
wires to the pushrod dowel with thin CA.
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7. Cut the covering from the pushrod exit slots nearest
the stab on both sides of the fuse. Install two outer guide
tubes (from a Great Planes Flexible Cable Pushrod kit,
GPMQ3702, not included) through the slots. Route the
guide tubes through the fuse into the radio compartment.
Screw the guide tubes to the threaded ends of the elevator
pushrod wires.
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8. Pull the guide tubes out of the fuselage until the pushrod
wires come out of the slots. Remove the guide tubes.
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9. Thread a nylon clevis onto the right pushrod wire
about twenty turns. Connect the clevis to the outer hole of a
nylon control horn. Connect another clevis and control horn
to the left pushrod wire the same way.
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10. Adjust the clevises (and the bends in the pushrod
wires if necessary) so both control horns rest on the
elevator in the exact same location. Make sure the holes in
the control horn align with the hinge gap. Using the horns
as a template, drill 3/32" holes through the elevators and
mount the control horns with 2-56 x 5/8" screws and the
nylon plates. Slide the silicone retainers onto each clevis.
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1. Cut the other pushrod dowel to a length of 19-1/2" for
the rudder pushrod dowel. The same as you did for the
elevator pushrod dowel, drill a 1/16" hole 1" from both ends
of the dowel and make grooves for the pushrod wires.
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2. (See the Pushrod Template #2, on page 4 for this
step.) Make a rudder pushrod wire as shown in the sketch
from a .074" x 12" wire pushrod. Secure the pushrod wire
to the pushrod dowel with the other piece of 1-1/2" heat
shrink tube and thin CA.
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3. Install the rudder pushrod in the fuse using an outer
pushrod guide tube to pull it through the same way you did
with the elevator pushrods. Connect the pushrod to the
rudder with a nylon clevis, a control horn, two 2-56 x 5/8"
screws and the nylon backing plate. Slide the silicone
retainers onto each clevis.
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1. Place the fuselage upside down in your building
stand. Bolt the wing to the fuselage.
Install the Wing Belly Pan
FINAL ASSEMBLY
Install the Rudder Pushrod
16