Tyres are the only contact between
the vehicle and the ground.
It is therefore of paramount
importance that tyres be maintained
in good condition at all times
and that, when the time comes
to change them, the correct
replacements are tted.
The tyres tted to your vehicle as
original equipment were selected by
the vehicle and tyre manufacturers
taking into account all aspects of
the vehicle’s operation.
Changes in tyre size, structure,
load and speed rating should not
be made without rst seeking
advice from the tyre or vehicle
manufacturer, as the effect on
safety, vehicle behaviour and
clearance must be considered.
Tyre fitting and removal
General instructions
- Tyre tting and removal can be
dangerous.
Entrust these operations
to specially trained experts
only, using proper tools and
procedures.
- If not performed by qualied
personnel, these operations
may cause visible or invisible
damage to the tyre and rim, which
may result in breakage during
subsequent use.
- In exceptional cases in which
these operations cannot be
carried out by an expert, tting
and removal must be performed
by carefully following the
instructions specially provided.
- Ensure that the tyre to be tted
is the correct type and size for
the vehicle concerned and the
intended use.
- Particular attention must be paid
to the compatibility of the rim and
tyre centring.
- For use of 5° rims on high
powered tractors, check that the
rims for the drive wheels feature a
knurling in the bead seat, which is
capable of stopping rotation of the
tyres on the rim during moments
of high traction, thus avoiding the
shearing of the valve.
- Avoid painting the bead seats of
rims for drive wheels with epoxy
resin paints.
In the case of rims with a special
nish, carefully rasp and renew
the protection with a normal
anti-rust treatment.
- Fit with the same structure, tread
pattern and size on the same axle
of the vehicle.
For dual tting, use only tyres
of the same size, structure and
groove depth and comply with the
dual spacing specied for the size
used.
- With new tyres, any other parts
(inner tube, ap, valve sealing
ring) must also be new.
- Check used tyres both externally
and internally for water, moisture,
foreign bodies or any sign of rust.
If damage is found and assessed
to be irreparable, the tyre should
be scrapped.
- The rim must be clean and in
good condition, especially if it has
already been used.
Tyre maintenance
Practical advices
- Discard rusty, deformed, damaged
or re-welded rims and rim
components.
- Be careful not to damage any
parts of the tyre or tube during
tting and removal.
- Always use the proper specialized
equipment and tools and the
approved type of lubricant (never
use silicone or petroleum-base
lubricants).
- Clean the tyre bead area and the
contact area between the rim and
the tyre.
- Check that the tyre, tube and the
ap are perfectly compatible.
- In the case of TUBE TYPE tyres,
ensure there is no air between the
tyre and inner tube.
- For correct tting of tube type
tyres, it is advisable to lightly
powder and partially inate the
tube before placing it inside the
tyres in order to avoid creasing.
- Ensure that the tyre is centred on
the rim.
Lubricant procedure
Lubricate the rim bead seat, rim
ange and tyre bead with an
appropriate tting lubricant (e.g.
Eurometer or a thin solution of
vegetable oil, soap and water, or
water only). The lubricant has good
lubricating characteristics and dries
relatively fast, which reduces the
risk of the tyre slipping on the rim.
If this advice is not followed, bead
damage or fracture could occur
during tting and/or rim slippage
during normal operation, which may
cause premature tyre failure.
1. Bead
2. Bead Seat
3. Bead Seat well
Part to Lubricate
Practical advices