6
INSTALL THE RADIO SYSTEM
1. Cut the back plate from one of the nylon control horns.
Thread a nylon clevis 14 turns onto the 2-56 metal pushrod.
Slide a silicone clevis retainer over the end of the clevis.
Attach the clevis in the third hole from the bottom of the
control horn.
Hinge Line
Hinge Line
CORRECT
INCORRECT
2. Use a sharp hobby knife to remove the covering from
the end of the rudder guide tube. Insert the pushrod into the
rudder pushrod guide tube. Position the control horn on the
rudder so that the four holes in the control horn are aligned
with the hinge line. Drill two 3/32" [2.4mm] holes through
the rudder using the control horn as a guide. Remove the
control horn and harden the holes by applying two or three
drops of thin CA in each hole. After the CA has cured, attach
the control horn to the rudder using two 2-56 x 3/8" [9.5mm]
screws and the control horn back plate.
3. Use a #44 or 3/32" [2.4mm] drill bit to enlarge the outer
hole in the second nylon control horn.
4. Insert the quick connector through the previously
drilled hole in the control horn. Install a 2mm washer on the
quick connector. Put a drop of threadlocker on the threads
and secure the quick connector with a 2mm thumb nut.
Tighten the nut and then slowly back it off until the quick
connector rotates freely. The threadlocker will prevent the
nut from coming loose.
5. Slide the elevator cable through the hole in the quick
connector and position the elevator control horn so that the
four holes are aligned with the elevator hinge line. Use a felt
tipped pen to mark the location of the holes.
