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:
Wear Spots
A wear spot is a flat spot on the tread of the tires that
can be caused by extreme braking maneuvers on subsurface such as
asphalt.
At the same time a tire during the braking maneuver is
rubbed at selective points which ...
Tire Service Life, Influences
The following factors influence the service life of a tire
in varying degrees.
Driving style:
Speed
Brakes
Acceleration
Cornering
...
Cleaning and caring for the dash panel, wooden trims and plastic parts
First read and observe the introductory information
and safety warnings
Moisten a clean, lint-free cloth with water and clean the parts.
Treat plastic parts inside and outside the vehicle and the dash panel
with a special solvent-free plastic cleaning and care product
that has been a ...
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Vibration, Road Test, Performing Before Balancing
Flat Spots, Correcting