Important: Always read and follow operating instructions.
• 15
Bead Loosening
Ensure the tire is completely deflated before starting any operation on the wheel.
Before lifting and positioning the wheel onto the clamping chuck, use the proper tool to remove any weights
from the rim, paying attention to not damage the rim.
Before starting any operation, check for the presence of a pressure sensor. If equipped, check its operation with
a dedicated diagnostic tool.
It is possible to unlock the disk support and enable a spring loaded movement, changing the angle of the disk,
increasing its penetration inside the rim. Particularly effective with soft tires.
Upper Bead Loosening
Check the correct centering and locking of the wheel onto the clamping chuck.
Check that the upper disk arm is in the working position.
Turn switch
6
to unlock the bead loosener and position it by pressing buttons
8, 9, 10 and 11
on the
console, so that the distance between the upper disk and the rim edge is 5 mm (fig. 1), then lock the bead
loosener by turning switch
6
again.
Pay special attention to the valve sensor position, if any, during bead breaking operations.
Wrong movements of the bead loosening disks could damage the sensor.
Spin the clamping chuck until the valve is in the
3 o’clock”
position.
Lower the bead loosener disk until it touches the tire using
controls
10
for lifting and
11
for lowering.
Start spinning
clockwise
.
Note:
the clamping chuck can spin at 2 different speeds, ac-
cording to operator’s preferences.
While spinning the wheel, push the upper bead loosener
disk down below the edge of the rim, then press and hold
down the “over-run” function button
5
while gradually lower-
ing the bead loosener disk until the bead is removed from
the rim.
As soon as enough space is available, a proper tire lubricating paste should be carefully applied to both the inner
surface of the rim and the tire bead (fig. 2).
Avoid contacting pressure sensor with lube paste if installed.
Once the bead is loosened, using button
10
to raise the upper bead loosening disk and move away.
