7. press the up button of the lower bead breaker roller (Fig. 5 ref. G1) until the bead breaker roller rests on the tyre. Push lightly to reduce the tension
on the opposite bead of the tyre and hold it in place (Fig. 116);
8. finish lifting the toolhead. Insert the bead protection tool together with the foils between the tyre bead and the rim (see Fig. 117);