Volkswagen Polo Service & Repair Manual: Vibration, Vibration Control System

Volkswagen Polo Service & Repair Manual / Whels, Tires, Whel Alignment / Handling Problems / Vibration / Vibration, Vibration Control System

Expanded functions can be performed using Hunter RFT33VAG Road Force Touch™ Wheel Balancer -VAS6230B4- in addition to the previously known balancers.

A special characteristic of this system is testing the radial force of wheel/tire during rolling.

For this purpose, a roller presses a force of approximately 635 kg (0.7 ton) against the wheel. This simulates the tire contact force against the street surface while driving.

Tire contact forces fluctuate due to radial- and lateral run-out and differing rigidity in the tires.

The Hunter RFT33VAG Road Force Touch™ Wheel Balancer -VAS6230B4- detects and stores the position of the maximum measured radial force in the tires. After that, the position of smallest dimension between rim flange and disc wheel center is measured.

Vibration, Vibration Control System

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Vibration, Road Test, Performing Before Balancing
If a vehicle comes to the workshop with the complaint “vibration”, a road test must be performed before balancing the wheels. That way, information about the type of vibration can be obtained. Obser ...