Volkswagen Polo Service & Repair Manual: 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. |
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If a vehicle comes to the workshop with the complaint
“vibration”, a road test must be performed before balancing the
wheels.
That wa ...
Flat spots cannot be removed from tires with workshop
equipment.
Such flat spots can be "driven out" only by driving the car
un ...
Other materials:
Visual Inspection
WARNING
Risk of injury. Follow all Warnings and Safety
Precautions. Refer to
→ Chapter „Warnings and Safety Precautions“.
Prior to performing any measurement ...
Electric windows – functions
First read and observe the introductory information
and safety warnings
One-touch opening and closing
One-touch opening and closing makes it possible to fully open and close the windows.
The individual buttons do not have to be held down to do this.
For one-touch closing: pull the button for ...
Tires, Damage from Low Tire Pressure
The most common causes of failure are small external damage,
a defective valve or a leaky rim due to corrosion or damage.
Separation of Carcass and Rubber
Strong heating due to driving w ...
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Vibration, Road Test, Performing Before Balancing
Flat Spots, Correcting