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:
Cigarette lighter
Fig. 105 In the front centre console:
cigarette lighter
First read and observe the introductory information
and safety warnings
With the ignition switched on, press in the knob on the cigarette lighter
.
Wait for the lighter to pop out.
Pull out the cigarette lighter and li ...
Introduction
This chapter contains information on the following subjects:
→ Warning and indicator lamps
→ Handbrake
→ Parking
→ Information on the brakes
→ Brake support systems
→ Switching the TCS on and off
→ Brake flu ...
Cracking
Cracking is the term for shallow cracks in the sidewall of
the tire.
They run starting from the bulge in the direction of the
tire shoulder. See Illustration for the mentioned components.
Refer to
→ Fig. „“Components ...
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Vibration, Road Test, Performing Before Balancing
Flat Spots, Correcting