TECHNICAL ADVICES

Mechanical lead

Liquid ballasting

Charts of filling
with liquid

Tyre maintenance

Stockage

Use
and maintenance

Use and maintenance

Adapt driving manner and speed to the vehicle load, the environmental conditions and the road surface.

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Avoid overload, either total or localized, with a suitable load distribution. Overload greatly affects the tyre's life.

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After tyre fitment, check nuts are still tight after 3 hours' use and then subsequently at regular intervals.

Use a proper gauge (periodically checking its calibration).

Do not allow the tyre to stand on hydrocarbons in general (oil, Diesel oil, grease, etc.).

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The tyres on a vehicle should be examined with particular attention being paid to the:
- tread, for evidence of abnormal wear, cuts, localised deformities and foreign bodies (grit, scrap metal, etc.)
- sidewalls, for cuts, cracks, impact damage, and localized deformities
- bread/rim flange region, for signs of chafing, rim damage, misfitment
- between twin tyres, for cracks, abrasion, localized deformities and foreign bodies

If there are objects lodged between the duals, first of all deflate the two tyres.
In case of any such damage, the tyre must be checked by a specialist.
A tyre specialist should be also consulted if a tyre has suffered a heavy impact, even though no damage is visible, because damage could seriously curtail tyre life.
Following a puncture, it is imperative to pullup as soon as possible, because working under flated may cause structural deterioration.
A tyre which has been punctured must always be removed from the wheel to be checked for secondary damage.
If a repair to a tyre is necessary and feasible, it must be carried out by a tyre specialist as soon as possible in order to avoid further deterioration of the structure.
In any case, all tyre repairs must be entrusted to a tyre specialist who must then take full responsibility for them.

Others

Tyres age, even if they have not been used or have only been used occasionally. Cracking of the tread sidewall rubber, sometimes accompanied by carcass deformation, is evidence of ageing. Old and aged tyres must be checked by tyre specialists to ascertain their suitability for further use.

Tyres fitted to vehicles that are parked for long periods will tend to age a crack more quickly than those that are used and run frequently.
In such circumstances it is important to jack the weight off the tyres and protect the tyre from direct sunlight.

 

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