Model Tech Simply Magic Instructions For Final Assembly page 29

Using a modeling knife, cut away and remove the covering material from over the rudder pushrod exit holes in each
side of the fuselage. They are located 6" in front of the rudder hinge line and 3/4" above the bottom of the fuselage.
Connect your radio system and plug the rudder servo into the receiver. Double-check that the rudder trim lever on
your transmitter is centered.
Step 2: Installing the Control Horns & Clevises
Use a couple of pieces of masking tape to hold the rudder centered.
Mark the positions of the four control horn mounting screws, then remove the control horn and set it aside.
Drill the holes through the rudder for the mounting screws using a 5/64" diameter drill bit.
Install one control horn on each side of the rudder using four M2 x 15 machine screws and four M2 hex nuts, being
careful not to overtighten them.
After tightening the hex nuts, apply a drop of thin C/A to the threads of each hex nut to prevent them from coming loose
during flight.
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Carefully slide the pushrod wires into the preinstalled
pushrod housings in the rear bulkhead and install the servo
horn, making sure it's centered.
Install the servo horn retaining screw to secure the servo
horn to the servo.
Position one nylon control horn onto one side of the
rudder, aligning the centerline of the control horn with the
pushrod wire. The centerline of the control horn should be
approximately 3/4" up from the bottom of the rudder.
Adjust the control horn so that the base is parallel with
the hinge line and the clevis attachment holes are over the
hinge line.
Thread the clevises onto the pushrod wires and snap them
into the outermost hole out from the base of the control horns.
Hold the pushrod wires with a pair of pliers to prevent
them from turning while installing the clevises.
IMPORTANT
Adjust the clevises equally so you don't run
into problems with the rudder centering or binding.
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