E.39
CHAPTER FOUR
Inspection, Adjustment & Lubrication
To install a tire on the wheel
1. If you are repairing a tube leak, repair the
puncture on the tube with a tube patch, or
replace the tube.
2. Follow the
Inspection
procedures in the
Wheels
section to check the rim and inside of the tire.
If you are replacing the tube or tire, make sure the new tube
or tire is the same size as the old one, or check with your
Trek dealer for compatibility of differing sizes. The size can
be found on the side of the tire.
3. Inflate the tube until it begins to take shape.
4. Place the tube in the tire.
5. Insert the tube valve stem through the hole in
the rim.
6. Starting at the valve stem, install the first
bead onto the rim (Figure 4.34).
7. Push the tire and tube over so the tube is
inside the rim (Figure 4.35).
8. Again starting at the valve stem, carefully
push the second bead into the rim using your
hands.
Be careful not to pinch the tube between the rim and the
tire (Figure 4.36) when mounting the tire.
9. Push the base of the valve stem up into the
tire, so that it its not caught between the tire
beads and the rim.
10. Inflate the tire to about half pressure while
checking that the tire bead is properly seated
in the rim (Figure 4.37).
11. Deflate the tire again.
This will help avoid any pinching of the tube.
12. Inflate the tire to the pressure indicated on the
side of the tire.
To install the wheel on the carrier
1. Follow the instructions
To install a wheel
on
page 12.
2. Close the brake quick-release and test the
brake to make sure it is working properly.
Figure 4.35- Insert the tube in
the rim
Figure 4.36- Inner tube pinched
between the tire and the rim
Figure 4.37- Inner tube con-
tained by the tire and the rim
