| Solution when the vehicle deviates to one side |
| Inspection conditions before and during the driving
test |
| –
| Inspect all suspension components on the front axle and
on the rear axle for damages. |
| –
| Check the inflation of the tyres and correct it if required. |
| –
| Check the tyres for visible damages from the outer portion
of the vehicle. Perforations, cuts and crushing on the side wall,
deformations caused by braking and/or damages on the tyre tread. |
| –
| Ask to the client if the tyre was perforated by a nail or
something similar and if it was repaired by a tyre specialized repair
shop. Occasionally replace these tyres. |
| –
| Check the tyres for regular wear and depth of the groove. |
| –
| The tyres are of the same type and brand and/or have the
same type of groove? |
| –
| In case of tyres without tread direction, assure that all
tyre DOT symbols are faced outward. Possibly it was already done,
previously, a tyre or wheel replacement. |
| –
| Is it a tyre's brand approved by manufacturer to be
used as genuine component? |
| –
| In order to perform the driving test, use a flat and straight
surface, not inclined to one side and without grooves. |
| –
| Perform a driving test with the client, taking into account
the conditions mentioned above. The client shall submit a claim. |
Note | At the moment the driving test is performed there shall not
be side wind. |
| If the claim is justifiable, we recommend the change of the
wheels/tyres according to the content of the following pages. |
| Before beginning the operations, it is very important to read
the following indications, otherwise the efforts performed may be
useless! |
Note | t
| Mark the tyres/wheels before the first replacement, for example,
FL, FR, RL, RR. |
| t
| After the change of the wheels, of after the modification of
the tyre position on the wheel, take special care to the behaviour
of the vehicle during the driving test. Note the replaced components
and how they were replaced. |
| t
| It shall be checked the intensity or the occasional change
of side deviation of the vehicle. |
| t
| For that, it is strictly required that the driving tests are
always performed by the same person and on the same surface. The best
condition will be the performance of the driving test on both senses
of the „test route“ chosen. |
| t
| When replacing a tyre by a new one, it is not assured that
the vehicle will not pull to one of the sides anymore. For this reason,
it is recommended that first the selective change of the wheels is
performed, as described on the following pages. |
| t
| In case of a great depth difference on the tyre grooves of
the front axle and rear axle, the tyres with higher groove depth shall
be assembled always at the same axle. |
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