Top Flite TOPA0906 - Manual (Page 16)

o 6. Insert the nose gear wire into the front wheel pant
as shown. Slide a 5.5mm wheel collar onto the nose
gear wire followed by the 2-3/4" [70mm] nose wheel,
and another 5.5mm wheel collar. Center the wheel in
the pant and mark the location of the wheel collars
onto the nose gear axle. As you did with the main
landing gear, file flat spots at the marks you made.
o 7. Loosely thread a 3 x 4mm machine screw with
threadlocking compound into each 5.5mm wheel
collar. Reinstall the wheel collars and nose wheel
onto the nose gear wire along with the wheel pant.
Tighten the screws in the wheel collars onto the flat
spots you made on the axle. Confirm that the wheel
spins freely on the axle. Add oil as necessary.
o 8. Center the nylon landing gear strap onto the
nose gear wire 1/2" [13mm] above the axle. Mark the
location for the mounting holes. Carefully drill 3/32"
[2.4mm] holes at your marks. Thread a #4 x 3/8"
[9.5mm] self-tapping screw into each hole and back
it out. Apply a drop of thin CA to each hole to harden
the wood. When the CA has hardened, attach the
strap to the wheel pant using two #4 x 3/8" [9.5mm]
self-tapping screws.
o 9. Cut the nylon nose gear bearing block into two
pieces as shown and flip them over. Sand the top
and bottoms of the pieces smooth. Loosely thread a
4-40 x 1/4" [6mm] SHCS with threadlocking compound
into the nylon steering arm. Loosely thread a 3 x 4mm
machine screw into the remaining 5.5mm wheel collar
with threadlocking compound. Slide one of the bearing
blocks onto the nose gear wire followed by the steering
arm, the other bearing block, and then the wheel collar.
Tighten the SHCS in the steering arm against the lower
flat spot on the nose gear wire and tighten the set screw
in the wheel collar against the upper flat spot. Be careful
when tightening the SHCS in the steering arm to prevent
stripping the brass insert in the arm.
o 10. Mount the nose gear bearing block pieces to
the firewall using four 4-40 x 5/8" [16mm] machine
screws and threadlocking compound. If necessary, oil
the nose gear wire to ensure that it rotates smoothly
within the bearing block.
INSTALL THE TAIL SERVOS & PUSHRODS
o 1. Position the elevator and rudder servo trays onto
the hardwood rails glued inside the fuselage as shown.
Drill through the mounting holes in the trays into the
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