Bead Breaking - Corghi A 222 Manual De Uso

Special wheels
Alloy rim wheels: some alloy rim wheels have minimal
rim wells A or no rim wells at all - Fig. 13a. These rims
are not approved by DOT (Department of Transporta-
tion) standards.
The initials DOT certify that tyres comply with the safety
standards adopted by the United States and Canada
(these wheels cannot be sold on these markets).
High-performance wheels (asymmetric curvature) -
Fig. 13-b: Some European wheels have rims with a very
pronounced curvature C, except in the area of the valve
hole A where the curvature is less pronounced B. On
these wheels the bead must first be broken in the area
of the valve hole, on both the top and bottom sides.
Wheels with pressure sensor - Fig.13c. To operate cor-
rectly on these wheels and avoid damaging the sensor
(which is incorporated in the valve, fixed with the belt,
glued inside the tyre, etc.) appropriate mounting/
demounting procedures should be followed (ref. Ap-
proved mounting/demounting procedure for runflat
and UHP tyres)
The TPMS device (optional accessory) can be used to check the proper operation of
pressure sensor.
Remove any old balancing weights from the rim.

6.3. BEAD BREAKING

- Fully deflate the tyre, removing the valve
To adjust the rim support in the correct position for the width of the wheel the bead of
which is to be broken.
- Position the wheel as shown in fig.11 And bring the bead breaker shoe to the edge of the rim.
IMPORTANT: during the bead breaking operation, you are advised to keep the table top
92
NOTICE
NOTICE
A
A
B
A
Operator's manual A 222
13a
C
13b
B
C
13c