Estrima BIRO - Tyre Care and Pressure Management

Use and maintenance manual 03.01 – 22/06/2016 45
TYRES
It is wise to remember that tyres are the sole point where the vehicle
touches the ground. Thus, it is evident how important it is to keep them
in an utterly efcient state, correctly inated and with a suitable tread.
The local road legislation regulating tyres must be complied with pe-
remptorily.
! WARNING The use of tyres that are exceedingly worn out or inated
or whose pressure is incorrect, may be conducive to accidents with
ensuing grave injuries and even death.
Insufcient pressure increases consumptions and, consequently,
reduces autonomy.
Air pressure
The measuring of tyre pressure must take place
only after the vehicle has been stopped for at
least 2 hours. If the measurement takes before
that, it is normal for bigger pressure values to re-
sult. Tyres must not be deated, to adapt them
to the suggested pressure measured when the
vehicle has cooled down, since, otherwise, an
insufcient pressure would ensue.
Pressures suggested when the vehicle has
cooled down, in bar or kg/cm2 are the
following:
Front 2.5
Rear 2.5
Wear of the tread
When you check your tyre pressure, verify also the wear of both tread
and sides, to assess if they are damaged or whether they contain extra-
neous things/objects.
Tyres shall be changed when the depth of the tread, measured
in the centre of the tyre (area 1), appears to be less than 1.6 mm.