Suzuki XL7 2007 Service Manual page 1087

Tire and Wheel Assembly Balancing Guidelines
NOTE
Tire and wheel assemblies which exhibit
excessive runout can produce vibrations
even if the assemblies are balanced.
It is strongly recommended that the tire and
wheel assembly runout be measured and
corrected if necessary BEFORE the
assemblies are balanced.
If the runout of the tire and wheel assemblies has not yet
been measured, refer to "Tire and Wheel Assembly
Runout Measurement - Off Vehicle" before proceeding.
There are 2 types of tire and wheel balance:
Static Balance
Static balance is the equal distribution of weight around
the wheel circumference. The wheel balance weights (2)
are positioned on the wheel in order to offset the effects
of a heavy spot (3). Wheels that have static imbalance
can produce a bouncing action called tramp.
Dynamic Balance
Dynamic balance is the equal distribution of weight on
each side of the tire and wheel assembly centerline. The
wheel balance weights (2) are positioned on the wheel in
order to offset the effects of a heavy spot (3). Wheels
that have dynamic imbalance have a tendency to move
from side to side and can cause an action called
shimmy.
Most off-vehicle balancers are capable of checking both
types of balance simultaneously.
As a general rule, most vehicles are more sensitive to
static imbalance than to dynamic imbalance; however,
vehicles equipped with low profile, wide tread path, high
performance tires and wheels are susceptible to small
amounts of dynamic imbalance. As little as 14-21 g (½-¾
oz) imbalance is capable of inducing a vibration in some
vehicle models.
Balancing Procedure
NOTE
When balancing tire and wheel assemblies,
use a known good, recently calibrated, off-
vehicle, two-plane dynamic balancer set to
the finest balance mode available.
1. Raise and support the vehicle. Refer to "Lifting and
Jacking the Vehicle: ".
2. Mark the location of the wheels to the wheel studs
and mark the specific vehicle position on each tire
and wheel - LF, LR, RF, RR.
3. Remove the tire and wheel assemblies one at a time
and mount on a spin-type wheel balancer. Refer to
"Tire and Wheel Removal and Installation".
4. Carefully follow the wheel balancer manufacturer's
instructions for proper mounting techniques to be
used on different types of wheels.
Regard aftermarket wheels, especially those
incorporating universal lug patterns, as potential
sources of runout and mounting concerns.
5. Be sure to use the correct type of wheel balance
weights for the type of wheel rim being balanced. Be
sure to use the correct type of coated wheel balance
weights on aluminum wheels. Refer to Wheel Weight
Usage.
6. Balance all four tire and wheel assemblies as close
to zero as possible.
7. Using the matchmarks made prior to removal, install
the tire and wheel assemblies to the vehicle. Refer to
"Tire and Wheel Removal and Installation".
8. Lower the vehicle.
Wheels and Tires: 2D-23