12.5
Bead breaking operations
1. After locking the wheel, bring the bead rollers (upper and lower)
(Fig.
_
31 ref.
_
2 and 3) and the tool (Fig.
_
31 ref.
_
4) near the edge
of the rim (Fig.
_
31 ref.
_
1), pressing the button (Fig.
_
31 ref.
_
5)
and, at the same time, pulling the handle (Fig.
_
31 ref.
_
6).
2. Lower the upper bead breaker roller (Fig.
_
31 ref.
_
2) by pressing
the lever A(UPP) (Fig.
_
14 ref.
_
2).
Fig. 31
3. Only at this point rotate the wheel clockwise (see Fig.
_
32) press-
ing the pedal (Fig.
_
32 ref.
_
1). Briefly press and release the lever
A (UPP) several times (Fig.
_
14 ref.
_
2), until there is sufficient
space between the rim and the bead to advance the roller with
the cam.
THE BEADING DISC MUST EXERT PRESSURE
ON THE TIRE BEAD BUT NEVER ON THE RIM.
USE VERY CAREFULLY THE VERTICAL BEAD
BREAKING ROLLERS IN ORDER TO AVOID POS-
SIBLE HANDS CRUSHING.
4. Activate the upper cam pushing push button (Fig.
_
14 ref.
_
B(UPP))
and keep on bead breaking until the operation is complete.
Fig. 32
5. Move the lower bead breaker roller closer (Fig.
_
33 ref.
_
2) by
pressing and releasing the lever A (UPP) (Fig.
_
14 ref.
_
2).
Fig. 33
6. Only now turn the wheel clockwise by pressing the pedal
(Fig.
_
33 ref.
_
2) and, at the same time, the push button (Fig.
_
14
ref.
_
B(LOW)), keeping it pressed until there's room enough for
the bead breaking.
24
