E-flite Mini Pulse XT PNP - Manual (Page 9)

 E-flite Mini Pulse PNP Assembly Manual
 1. Place the landing gear onto the bottom of the fuselage.
They will angle back slightly when installed in the correct
direction. Attach with two 4-40 x 1/2" socket head bolts
and two #4 black washers.
  2. Slide the 4-40 x 1 1 /
4
" socket head bolt through one
of the 2" wheels. Slide a #4 steel washer so it fits against
the wheel. Next secure a 4-40 nut against the washer.
Make sure the wheel still spins freely. Slide a second #4
steel washer onto the bolt. This washer will fit inside the
wheel pant.