8. Lubricate the upper tire bead and rim with soapy
water.
9. Press the upper bead into the rim opposite the
valve stem. Pry the bead into the rim on both sides
of this initial point with your hands and work
around the rim to the valve stem. If the tire pulls up
on one side, either use a tire iron or a knee to hold
the tire in place. The last few inches are usually the
toughest and also the place where most tubes are
pinched. If possible, continue to push the tire into
the rim with your hands. Relubricate the bead if
necessary. If the tire bead pulls out from under the
rim, use both of your knees to hold the tire in place.
If necessary, use a tire iron and rim protector for the
last few inches (
Figure 57
).
CAUTION
Make sure the valve stem is not
cocked in the rim (
Figure 58
).
10. Wiggle the valve stem to make sure the tube is
not trapped under the bead. Set the valve squarely in
its hole.
WARNING
In the next step, seat the tire on the rim
by inflating the tire to approximately
10% above the recommended infla
tion pressure listed in
Table 3
. Do not
exceed 10%. Never stand directly
over a tire while inflating it. The tire
could burst with enough force to
cause severe injury.
11. Check the bead on both sides of the tire for an
even fit around the rim, then relubricate both sides
of the tire. Inflate the tube to seat the tire on the rim.
Check to see that both beads are fully seated and the
tire rim lines (
Figure 59
) are the same distance from
the rim all the way around the tire. If the beads will
not seat, release air from the tire. Lubricate the rim
and beads with soapy water, then reinflate the tube.
12. Bleed the tire pressure down to the recom-
mended pressure listed in
Table 3
. Install the valve
stem nut, tighten it against the rim, then install the
valve stem cap.
13. Balance the wheel as described in this chapter.
302
CHAPTER TEN
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56
57
58