Top Flite TOPA0955 - Manual (Page 17)

17
o 11 . Install three hinges into the rudder the same
as done with the elevator . Test fit the rudder to the
fin . When you are satisfied with the final fit, apply six
drops of thin CA to the top and bottom of each hinge .
o 12 . Screw a nylon clevis onto a .074 x 36"
[914mm] threaded wire 20 turns . Slide a nylon clevis
retainer onto the clevis . Slide the pushrod wire into
the pushrod guide tube hole on the right side of the
fuselage . Install the clevis into the outer hole of the
control horn . Then, slide the silicone retainer over
the clevis . Mark the location for the control horn
onto the elevator . Drill a 1/16" [1 .6mm] hole into the
plywood plate in the elevator .
Do not drill through
the elevator. Screw the horn to the rudder with #2 x
3/8" [10mm] screws . Remove the screws, and apply
a drop of thin CA to harden the threads . After the glue
has dried, re-install the screws into the horn .
o 13 . Repeat step 14 for the rudder . The pushrod
wire will slide into the pushrod guide tube on the left
side of the fuselage .
INSTALL THE SERVOS, ENGINE
AND FUEL TANK
We will be showing the installation of the O .S . .91
engine . If you are installing a larger four-stroke
engine or a two stroke engine, you may need to
make additional cut outs in the cowl or the fuselage
to accommodate the cylinder head and the muffler .
o 1 . Use the wire pushrods as your guide for
positioning the servos . Cut three arms from a four-
armed servo arm . Center the servo with your radio
system and install the servo arm perpendicular to
the servo case as shown . Install the servos using the
same procedure used for the other servos, mounting
them onto the servo rails . Be sure to harden the screw
holes with thin CA .
o 2 . Bolt the engine mount to the firewall with
four 8-32 x 1" [25mm] socket head cap screw, #8
lock washer and #8 flat washer . The engine will be
mounted inverted so be sure the mount is attached to
the firewall inverted . Place your engine on the mount
and adjust the mounting rail position to match and
then tighten the bolts .
o 3 . Position the engine on the mount so the
distance from the firewall to the front of the thrust
washer measures 6-1/8" [155mm] . Mark the location