2-16
INSTALLATION
1
WARNING
● Only install original equipment (stock) tire valves
and valve caps. A valve or valve and cap combina-
tion that is too long may interfere with (strike) adja-
cent components, damage the valve and cause rapid
tire deflation. Rapid tire deflation could cause loss of
control and personal injury.
● Also, aftermarket valve caps that are heavier than the
stock cap may have clearance at slow speeds; but, at
high speed the valve/cap will be moved outward by
centrifugal force. This outward movement could
cause the valve/cap to strike the adjacent compo-
nents, damage the valve and cause rapid tire defla-
tion. Rapid tire deflation could cause loss of control
and personal injury.
1. Damaged or leaking valve stems must be replaced.
Place rubber grommet on valve stem with shoulder in
recess of the valve stem head.
2. Install and tighten nut to 42-44 in-lbs (4.7-5.0 Nm).
3. Thoroughly lubricate rim flanges and both beads of tire
with tire lubricant.
4. See Figure 2-15. Starting at the valve stem, start first
bead into the rim well using a bead breaker machine. If
no machine is available, work bead on as far as possible
by hand. Use a tire tool to pry the remaining bead over
rim flange.
5. Start 180° from valve stem hole and place second bead
on rim. Work bead onto rim with tire tools, working
toward valve in both directions.
1WARNING
Do not inflate over 40 psi (2.8 bars) to seat the beads.
Inflating the tire beyond 40 psi (2.8 bars) to seat the
beads can cause the tire rim assembly to burst with force
sufficient to cause personal injury. If the beads fail to
seat to 40 psi (2.8 bars), deflate and relubricate the bead
and rim and reinflate to seat the beads, but do not exceed
40 psi (2.8 bars).
6. Apply air to stem to seat beads on rim. It may be neces-
sary to use a TIRE BEAD EXPANDER (Part No. HD-
28700) on the tire until beads seal on rim.
Checking Tire Lateral Runout
1. See Figure 2-16. Turn wheel on axle and measure
amount of displacement from a fixed point to tire side-
wall.
2. Tire tread lateral runout should be no more than 0.080 in.
(2.03 mm). If runout is more than 0.080 in. (2.03 mm),
remove tire from rim.
3. Check rim bead side runout. See CHECKING CAST RIM
RUNOUT on page 2-14. Replace rims not meeting spec-
ifications.
4. Install tire and check again for tire tread lateral runout.
Checking Tire Radial Runout
1. See Figure 2-17. Turn wheel on axle and measure tread
radial runout.
2. Tire tread radial runout should not be greater than 0.060
in. (1.52 mm). If runout exceeds specification, remove
tire from rim.
3. Check rim bead runout. See CHECKING CAST RIM
RUNOUT on page 2-14. Replace rims not meeting spec-
ifications.
4. Install tire and check tire tread radial runout again.
Figure 2-16. Checking Tire Lateral Runout
Figure 2-17. Checking Tire Radial Runout
Tire lateral
runout 0.080 in.
(2.03 mm)
maximum
Gauge
b0087x2x
b0088x2x
Tire radial
runout 0.060
(1.52 mm)
maximum
Gauge
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