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:
Battery Post/Terminal
WARNING
Risk of injury. Follow all Warnings and Safety
Precautions. Refer to
→ Chapter „Warnings and Safety Precautions“.
Caution ...
Hill Hold Assist
First read and observe the introductory information
and safety warnings The Hill Hold Assist function actively holds
the vehicle when pulling away on an incline.
The Hill Hold Assist function is automatically activated if the following conditions
are met
Cond ...
Stowage
Fig. 161 In the luggage
compartment underneath the floor covering A: Spare wheel and vehicle toolkit
without ball coupling, B: Spare wheel and vehicle toolkit with ball coupling, C:
Spare wheel and vehicle toolkit without ball coupling
First read and observe the introductory
information an ...
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