August 28, 1995
Matco W62 Wheel Installation
Kitfox's with Matco W62 Wheels
SkyStar Aircraft Engineering Department
builders have called our technical support staff and expressed
concerns with the assembly of the Matco W62 wheels. It seems that it
is easy for the inner tube to get pinched between to the halves of the
wheel as they are being connected. To reduce the likelihood of this,
we recommend that you use the following procedure.
Obtain a length of ¼"-20 threaded rod (the same diameter as
the bolts which hold the wheel halves together) from your local
hardware store and six nuts to fit it. Cut the rod into three 9-inch
Inflate the inner tube only slightly to allow it to begin to take
form and insert it into the tire.
Place the two halves of the wheel on either side of the tire. Place
a nut on one end of each of the three threaded rods and insert the
other end of each rod through three of the bolt holes in the halves
of the wheel. This is shown in Figure 1 with the tube and tire
omitted for clarity.
a nut on the other end of each threaded rod. Begin to tighten all
three nuts evenly to pull the wheel halves together. Make certain the
tube does not get caught between the two wheel halves by inserting a
small piece of cardboard between the halves and working it all around.
Additional protection against pinching the tube may be provided by
placing a cardboard collar around each wheel half so the tube may not
come between them.
Once the two halves have been pulled together, replace each of the
threaded rods, one at a time, with the bolts supplied with the wheel.