Great Planes Reactor .46 EP/GP 3D ARF - GPMA1021 - Manual (Page 12)

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5. Install the tail wheel onto the tail wheel wire followed
by the wheel collar and set screw. Spin the tail wheel and
confirm that it rotates freely. Oil the tail wheel as necessary
for it to spin smoothly.
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1. Attach the 5/32" [4mm] axles to the main landing gear
using 5/16"-24 axle nuts. Slide a 5/32" [4mm] wheel collar
onto each axle followed by a 2-1/4" [57mm] foam wheel and
another 5/32" [4mm] wheel collar. Loosely screw a 6-32 set
screw into each wheel collar using a 1/16" [1.6mm] allen key.
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2. Slide the wheel pants over the axles into position and
temporarily attach them to the landing gear using four
4-40 x 3/8" [9.5mm] phillips screws. Position the wheel in the
center of the wheel cutout in the wheel pants and tighten the
wheel collars against the axles.
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3. Remove the wheel pants from the landing gear and
remove the wheel collars and wheels from the axles. Locate
the indentations on the axles made by tightening the set
screws. Use a metal file or rotary tool such as a Dremel to
grind flat spots on the axles at the indentations.
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4. Reassemble the wheel collars and wheels onto the axles.
Apply threadlocking compound to the set screws. Attach the
wheel pants to the main landing gear using the four 4-40 x 3/8"
[9.5mm] screws and four #4 lock washers. Apply threadlocking
compound to the screws before tightening. Center the wheels
in the wheel pants and tighten the set screws in the wheel
collars. Oil the wheels as necessary for them to spin smoothly.
Assemble and Install the Main Gear
12