Mondolfo Ferro Startline S 524 Manual De Uso página 136

- Remove the bead presser roller, place the
bead presser block in opposite position to
the demounting/mounting tool, activate the
lowering lever so as to insert the bead into
the rim channel (fig.50).
- Load the bead over the demounting/mount-
ing tool (Fig. 50), move the bead presser
block away, press the rotation pedal and
take out the first bead.
- Take the lower bead up to the upper rim
edge; in some cases, even if the bead has
already been broken, the bottom bead will
remain in place because it has stuck to the
rim.
If this occurs, use the disc, inserting it
between the bottom bead and the rim (fig.
51), press the rotation pedal and lift.
- The second bead can be demounted in the
traditional way, with the lever or using the
bead depressor roller.
-Position the presser roller tangent to the ex-
ternal diameter of the rim (Fig. 51).
Fitting the tyres
- Place the tyre on the rim and tilt the pole
forward, then fit the first bead (fig.52)
- Place the top bead underneath the mounting/
demounting tool, and at the same time, place
the bead presser roller and the bead presser
block close to the mounting/demounting
tool, press the down lever until the rim
clamping roller has descended below the
top edge of the rim (fig.53).
- Press the rotation pedal and mount the cover.
- You will now see that the rim presser roller
holds the bead underneath the head of
the mounting/demounting tool and the
bead presser block will follow the wheel
as it rotates, keeping the bead inside the
drop centre. This guarantees that the tyre
is mounted correctly without the operator
having to use his hands.
NOTE: stop rotation when the bead presser
is next to the mounting/demounting tool.
- Press the up lever and free the wheel from
the roller and from the bead presser.
136 Startline S 424-S 421-S 521-S 524 Operator manual
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