Volkswagen Polo Service & Repair Manual: Wheel, Balancing, Tire and Wheel Radial and Lateral Run-Out, Checking
| Before beginning balancing, the following requirements must
be fulfilled. |
| The tire pressure must be OK. |
| The tire profile must not be worn on one side. The tire
profile must be at least 4 mm. |
| The tires must not have any damage such as cuts, holes,
foreign bodies, etc. |
| The suspension and steering, including the shock absorber,
must be in perfect condition. |
| Test drive performed. Refer to
→ Chapter „Vibration, Road Test, Performing Before Balancing“. |
| Radial and lateral run-out occur when the wheel and tire are
not running precisely true. |
| For technical reasons, 100% true running is not possible. |
| Therefore the manufacturers of these components allow a
precisely specified tolerance. |
| Mounting the tire in a unfavorable position on the wheel can
be the cause for exceeding the maximum allowed tolerance for
wheel with tire. |
| – |
Preload the Tire Dial Gauge approximately 2 mm. |
|
|
|
| – |
Position the Tire Dial Gauge on the side wall of the tire. |
| – |
Rotate the wheel slowly. |
| – |
Note the smallest and the largest dial readings. |
 Note
| If the difference is greater than 1.3 mm, the lateral
run-out is too great. |
| In this case the radial run-out can be reduced by matched
mounting. Refer to
→ Chapter „Tires and Rims, Matching“. |
| Peak values on the Tire Dial Gauge due to small
irregularities in the rubber may be disregarded. |
| – |
Preload the Tire Dial Gauge approximately 2 mm. |
|
|
|
| – |
Position the Tire Dial Gauge on the tread of the tire. |
| – |
Rotate the wheel slowly. |
| – |
Note the smallest and the largest dial readings. |
Note
| If the difference is greater than 1 mm, the radial run-out
is too great. |
| In this case the radial run-out can be reduced by matched
mounting. Refer to
→ Chapter „Tires and Rims, Matching“. |
| The table shows the maximum permissible tolerance values for
the wheel with mounted tire. |
| Tolerances for Radial and Lateral
Run-Out of Rim With Tire |
|
|
|
|
Rim With Tire |
Radial
Run-Out (mm) |
Lateral
Run-Out (mm) |
|
Passenger Vehicle |
0.9 |
1.1
(1.3 near the lettering) |
Before beginning balancing, the following requirements must
be fulfilled.
The tire pressure must be OK.
The tire p ...
Mount the rim on the Balancing Machine.
–
Use the Wheel Centering System Adapter -VAS5271-.
–
Preload th ...
Other materials:
Snow Chains
Snow Chins, Assembly and Replacing
Snow chains may be mounted only on the drive wheels.
If the vehicle has AWD, then snow chains may be used on the
front wheels only.
Snow chains are not possible with all wheel/tire
com ...
Filling the tank with petrol or diesel
Fig. 130 In the right-hand side of the
vehicle at the rear: tank flap open
Fig. 131 Open tank flap with tank cap attached
to the holder
First read and observe the introductory information
and safety warnings Switch off the engine, ignition and the
mobile telephone before filling the ta ...
Tire Sealant, Removing
Place the wheel on a flat surface.
–
Remove the valve insert.
Caution
Tire sealant is harmful to health.
eye and skin irritation as well ...
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Wheel, Balancing with Fine Balancing Machine (Finish Balancer)
Wheel Balancing, Rim Radial and Lateral Run-Out, Checking