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:
Introduction
This chapter contains information on the following subjects:
→ Operating ParkPilot
→ Acoustic and optical ParkPilot signals at the rear of the vehicle
The ParkPilot assists the driver when manoeuvring and parking.
The ultrasound sensors in the rear bumper transmit and recei ...
Evacuating and Charging Valve, High Pressure Side
Special tools and workshop equipment
required
Torque Wrench 1783 - 2-10Nm -VAG1783- with Torque Wrench
1783 - 1/4" Drive Ratchet -VAS6234-
WARNING
There is a dan ...
Tread depth and wear indicators
Fig. 147 Tyre tread: wear indicators
First read and observe the introductory information
and safety warningsTread depth
Difficult driving situations demand the deepest possible tread depth for the
tyres and the same tread depth for the tyres on the front and rear axles. This applies
in pa ...
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Vibration, Road Test, Performing Before Balancing
Flat Spots, Correcting