Suzuki XL7 2007 Service Manual page 1295

Brake Rotor/Drum Balance Inspection
1. Support the vehicle drive axle on a suitable hoist.
Refer to "Lifting and Jacking the Vehicle: ".
2. Remove the tire and wheel assemblies from the
drive axle. Refer to "Tire and Wheel Removal and
Installation: ".
WARNING
!
Refer to Work Stall Test Caution.
3. Reinstall the wheel nuts in order to retain the brake
rotors.
4. Run the vehicle at the concern speed while
inspecting for the presence of the vibration.
CAUTION
!
Do not depress the brake pedal with the
brake rotors and/or the brake drums
removed, or with the brake calipers
repositioned away from the brake rotors, or
damage to the brake system may result.
5. If the vibration is still present, remove the rotors from
the drive axle, then run the vehicle back to the
concern speed.
6. If the vibration is eliminated when the brake rotors
are removed from the drive axle, repeat the test with
one rotor installed at a time. Replace the rotor that is
causing or contributing to the vibration concern.
7. If a brake rotor was replaced as a result of following
the previous steps, or if necessary to confirm the
results obtained during the previous steps, and/or to
check the non-drive axle components, perform the
following:
a. Mount the brake rotor/drum on a balancer in the
same manner as a tire and wheel assembly.
NOTE
Check brake rotors/drums for static
imbalance only; ignore the dynamic
imbalance readings.
b. Inspect the rotor/drum for static imbalance.
There is not a set tolerance for brake rotor/drum static
imbalance. However, any brake rotor/drum measured in
this same manner which is over 21 g (¾ oz) may have
the potential to cause or contribute to a vibration. Rotors/
drums suspected of causing or contributing to a vibration
should be replaced. Any rotor/drum that is replaced
should be checked for imbalance in the same manner.
Front Brakes: 4B-23