Bead Breaking - SICE S 200 Manuel D'instructions

2.2 Bead breaking

Completely release the air from inside the tyre before proceeding. Never attempt
to break the bead until all air is removed from the tyre. Failure to remove all air
from tyre may result in injury to the operator, or damage to the equipment, the tyre,
or the wheel.
1. Deflate the tyre completely, by removing ferrule from the valve rod. Remove all
wheel balance weights from the rim to protect the rim and extend life of the mounting/
demounting head.
2. Move the upper bead breaking unit from its rest position to its operating position.
3. Move the disc closer to the rim:
the horizontal movement is achieved by hand, operating control
the vertical movement is achieved by operating control
4. Once the desired distance is reached (a gap of 2-3 mm should be left between the
rim edge and the bead breaker disc), release control
horizontal movement of both bead breaker discs.
Lubricate the bead carefully, before and during the bead breaking phase to facilitate
the operation.
Upper bead breaking
1. Preload the bead breaker disc using control
is advisable).
Manuale d'uso S 200
CAUTION
CAUTION
to inhibit any further
(a tyre crushing preload of about 5 mm
;
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