E-flite Extra 260 3D 480 ARF - Manual (Page 9)

 E-flite Extra 260 480 ARF Assembly Manual
  2. Slide the 4-40 x 1 1 /
4
-inch machine screw through one
of the 1 3 /
4
-inch wheels. Slide a black #4 washer so it fits
against the wheel. Next secure a 4-40 lock nut against
the washer. Make sure the wheel still spins freely. Thread
a 4-40 nut onto the bolt. This nut will fit inside the wheel
pant and keep the wheel pant from rotating.
  3. Attach the wheel to the landing gear using a black
#4 washer and 4-40 lock nut.
  4. With the fuselage level to the work surface, rotate the
wheel pant so it is also level to your work surface and
secure the pant to the landing gear with a 2mm x 6mm
wood screw.
 5. Repeat Steps 2 through 4 for the remaining wheel
and wheel pant.