8-45 Periodic Maintenance and Adjustment
Fitting and removal of tyres
It is recommended that these operations be entrusted to a specialist who has the necessary
equipment and expertise.
Inflation pressure
Correct inflation pressures are of the highest importance for safety.
Check tyre pressures and inflate tyres only when tyres are cold.
Tyre and wheel maintenance
Tyre tread depth shall be checked regularly. It has to be taken into consideration that the
shallower is the tread, the lower is the tyre grip.
It is essential to stop as soon as possible after a puncture and have the tyre removed and
examined.
Tyre repairs must be entrusted to a tyre specialist.
Distorted or damaged wheels shall be replaced.
Tyre replacement
Replacement tyres and wheels must be of the same size designations and type as those
specified by the vehicle manufacturer. Changes in tyre type should not be made without first
seeking advice from the tyre or vehicle manufacturer as the effect on safety, vehicle behaviour
and clearance must be considered.
Used tyres should not be fitted if their previous history is unknown.
Tyre ageing
Tyres age, even if they have not been used or have only been used occasionally. Cracking of
the tread and sidewall rubber, sometimes accompanied by carcass deformation, is an evidence
of ageing. Old and aged tyres must be checked by tyre specialists to ascertain their suitability
for further use.
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