Great Planes RV-4 40 Kit - GPMA0180 - Manual (Page 38)

❏ 13. On the threaded end of both elevator pushrods attach
a clevis retainer and then a clevis by turning it onto the
threaded end approximately 25 turns.
❏ 14. In the “Finishing the Fuselage” section of the manual
you made a balsa fixture to help in shaping the tail block. If
you followed our recommendations you did not install the
stab/elevator and fin/rudder to the fuselage. If you have not
installed them, temporarily remove the fixture and then slide
the stab/elevator and fin/rudder into the slots.
Do not glue
them in place.
❏ 15. Snap the clevis onto the bottom hole of the control
horn on each elevator half. Position both halves of the
elevator at neutral. Once they are set, tighten both set
screws in the wheel collars onto the two pushrod wires.
❏ 16. Cut another 2-56 x 36" [914mm] wire pushrod to a
length of 31-1/2" [800mm] for the rudder. Attach the clevis
and clevis retainer in the same way you installed them on the
elevator. Then, install the clevis onto the rudder control horn.
❏ 17. Enlarge the end hole in the servo arm of the elevator
and rudder servo with a 1/16" [1.6mm] drill bit. Position the
elevator to be neutral. Then, make a mark on the pushrod
wire with a felt tip pen where it meets the end hole in the
servo arm.
❏ 18. Position the rudder to be neutral. Then, make a mark
on the rudder pushrod wire with a felt tip pen where it meets
the end hole in the servo arm.
❏ 19. Make a 90 degree bend on the mark for both wire
pushrods. Cut off any pushrod wire extending above
the FasLink.
❏ 20. Insert the wire through the hole in the servo arm and
retain it with a nylon FasLink.
❏ 21. Remove the stab and fin from the fuse. Put the fixture
in place at the rear of the fuse.
❏ 22. Following the radio manufacturer’s instructions, install
the radio switch harness on the side of the fuselage.
❏ 23. Referring to this sketch and the plan, install the receiver
and battery pack into the front lower half of the fuselage.
Connect all of the servos and servo extensions for the flaps
and ailerons, following the radio manufacturer’s instructions.
❏ 1. We are now going to break away from the radio
installation to install the fuel tank. As you can see in the
previous sketch, the foam wrapped receiver and battery are
going to support the fuel tank. Assemble the components of
the fuel tank as shown.
Install the Fuel Tank
Vent Line to
Muffler
G P
10oz (800cc)
Receiver &
Battery
FasLink
2-56 (.074") Pushrod Wire Servo Horn
38