Caution: One or more of the following guidelines may apply when performing specific required tests in the work stall:
• When a test requires spinning the drive wheels with the vehicle jacked up, adhere to the following precautions: - Do not exceed 56 km/h (35 mph) when spinning one drive wheel with the other drive wheel stopped. This limit is necessary because the speedometer indicates only one-half the actual vehicle speed under these conditions. Personal injury
may result from excessive wheel spinning. - If all of the drive wheels are spinning at the same speed, do not exceed 112 km/h (70 mph). Personal injury may result from excessive wheel spinning. - All persons should stay clear of the rotating components and the balance weight areas in order to avoid possible personal injury. - When running an engine in the repair stall for an extended period of time, use care not to overheat the engine and the transmission. • When a test requires jacking up the vehicle and running with the wheels and brake rotors removed, adhere to the following precautions: - Support the suspension at normal ride height. - Do not apply the brake with the brake rotors removed. - Do not place the transmission in PARK with the drive axles spinning. - Turn Off the ignition in order to stop the powertrain components from spinning. • When running an engine in the work stall, use the exhaust removal system to prevent breathing dangerous gases.
Notice: 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.
7.1. | Mount the brake rotor onto the balancer in the same manner as a tire and wheel assembly does. |
Important: Only check brake rotors for static imbalance, ignore the dynamic imbalance. |
7.2. | Inspect the brake rotor for balance. |
There is not a set tolerance for brake rotor static imbalance. However, any brake rotor measured in this same manner which is over 21 g (¾ oz), may have potential to cause or contribute to a vibration. Rotors suspected of causing vibration should be replaced. Inspect the replacement rotor for imbalance in the same manner.