Top Flite Sierra 40 Trainer Kit - Manual (Page 29)

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6. Cut out any clearance holes or notches you
marked in the previous step. Mount the muffler.
DO THESE STEPS FOR
TRICYCLE LANDING GEAR
7. If you are building a trike gear and are not
using the 9mm spacer, you will need make an
indentation into the firewall to provide clear-
ance for the nylon steering arm. Mark the
location of this cutout under the mount. After
the mount is removed, relieve the area enough
to clear the steering arm (a Dremel Moto-Tool
is handy for this job).
NOTE: The steering arm is rotated away
from the firewall when the axle is aligned for
straight ahead steering. Refer to the photos
and plans for proper orientation.
8. One 5/32" wheel collar is pressed into the
nylon steering arm; then the 6-32 x 3/16"
machine screw is threaded in. This assembly
is used below the mount. The other 5/32" wheel
collar and the 6-32 socket head screw are used
above the mount to retain the nose gear. As-
semble the parts as shown to determine the
location of a flat which will be made under the 6-
32 x 3/16" machine screw. Disassemble the
parts.
9. Clamp the wire nose gear in a vise and use
the side of a flat file to make a flat spot at the
location you marked.