Important: Always read and follow operating instructions.
• 13
Positioning the Valve
Fig. 6 shows a rim in the form of a clock. In the following
Mounting and Demounting process steps, you will position
the rim with clock directions, so that the valve and pressure
sensor do not get damaged.
CAUTION
To avoid damaging the valve and pressure sensor,
(if installed) you must always arrange the valve in
the position indicated, following the instructions
when mounting and demounting the tire. fig.6
Tire Classi
fi
cation
LOW PROFILE tires (UHP) are those in which the height (H) and the width (C) have a ratio lower than 0.5 (i.e.
low profile series 45 stands for a ratio of H/C = 0.45).
For tires to be considered as LOW PROFILE (UHP), they must also have a maximum speed code of equal to
or higher than V.
RUN-FLAT tires are those which, even when they have no internal pressure, allow you to continue to drive the
vehicle for a preset number of miles and at a preset speed. These parameters change from one manufacturer to
another. The market currently offers 2 different types of RUN-FLAT tires:
• Those with REINFORCED SIDE (SELF-SUPPORTING) where, thanks to a different mix and a reinforced
structure, the shoulder of the tire is able to bear the weight of the vehicle even when the pressure in the tire
is zero.
• Those with INTERNAL SUPPORT have a ring inside the rim that bears the side of the tire when there is no
pressure inside it. The internal support may be made of plastic or metal.
The tire changer is able to handle all types of LOW PROFILE (UHP) and all types of RUN-FLAT tires with
REINFORCED SIDE; for other types, refer to the specific instructions of the dedicated accessories, if available.
The mounting and demounting procedure is the same, be it a RUN-FLAT tire with REINFORCED SIDE (SELF-
SUP-PORTING) or a LOW PROFILE tire (UHP).
CAUTION
It is crucial to follow the instructions very carefully in order to avoid irreparable damages to the tire,
which could compromise the vehicle’s safety.
