Volkswagen Golf Service & Repair Manual: Vibration control system
| Using the vibration control system -VAS 6230 A- you can
perform more functions than just stationary balancing. |
| A special feature of this system is the testing of the
radial force of the wheel and tyre while rolling. |
| A roller presses against the wheel with a force of about 635
kg. This simulates the vertical tyre force against the road
surface during travel. |
| Radial and lateral run-out in the wheel and tyre and
differences in the stiffness of the tyre cause the vertical
force of the wheel to vary. |
| The -VAS 6230 A- detects and stores the position of the
maximum measured radial force in the tyre. Then the position of
the smallest distance between the wheel rim flange and the
centre of the rim is measured. |
|
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Note
Before working with a finish balancer, the mechanic needs to
have been instructed by the manufacturer of the balancer.
...
Radial and lateral run-out occur when the wheel and tyre do
not run absolutely true.
For technical reasons, 100% true running is not possible.
...
Other materials:
Connecting vacuum gauge for brake servo -VAS 6721-
Special tools and workshop equipment
required
Vacuum gauge for brake servo -VAS 6721-
–
Pull vacuum hose out of brake servo.
First press the br ...
Battery
Battery - general notes
Note
All instructions and notes regarding this chapter are
available under
→ Electrical System, General Information; Rep. gr.27.
...
Assembly overview
Caution
If excessive force is exerted on sockets without
illumination, the retaining sleeve may be damaged.
Only illuminated sockets (cigarette lighter) can be
removed with the pull ...
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Balancing wheel, balancing wheel with finish balancer
Checking radial and lateral runout of wheels and tyres, tolerances