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:
Current Draw Test
WARNING
Batteries that have a light yellow visual indicator
do not have to be tested or charged. Jump starting must
not be used!
There is a risk of explosion during testing,
...
Vehicle Registration Documents Since 01/10/2005
The implementation of EU guideline 1999/37/EG "Vehicle
registration documents" in national legislation and legal data
protection requirements have made the introduction of new, fraud
resistant registration documents necessary.
...
Introduction
This chapter contains information on the following subjects:
→ Handling wheels and tyres
→ Rims
→ New wheels and tyres
→ Tyre pressure
→ Tread depth and wear indicators
→ Tyre damage
→ Spare wheel or temporary spare wheel
...
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Vibration, Road Test, Performing Before Balancing
Flat Spots, Correcting