Tyre Mounting; Special Tools - Mondolfo Ferro As 933 Uso Y Mantenimiento

vertical slide and the swing arm (fig.15a) and to set the mounting/demounting device in the correct position against the
edge of the rim (fig.16).
IMPORTANT: when the button is pressed, this will simultaneously lock both the vertical slide and the swing arm, with
the mounting/demounting vertical slide moving slightly up and away from the edge of the rim (fig.16a).
This space between the rim and the vertical slide will be maintained for as long as the button is in the locking position.
The operator can tilt the tower freely (eg. when demounting wheels of the same size) without repositioning the vertical
slide.
- Insert and position the bead lifting tool on the mounting vertical slide (fig.17).
When working with alloy wheels or wheels with delicate paintwork, you are advised to remove the bead lifting tool
before proceeding with the demounting or use the lever guard provided.
WARNING
Grip the bead lifting tool firmly during use.
- Raise the upper bead to above the rear part of the demounting vertical slide (fig.17a) and force part of the upper bead
into the rim groove by pushing down on the side wall of the tyre nearest to the operator.
- Press the pedal to turn the table top clockwise. The upper bead will automatically be guided up and over the rim
(fig.18).
Repeat the last three points to detach the lower bead.
- Tilt the tower backwards.
NOTE: If the tyre has an inner tube, after detaching the upper bead, tilt the tower back and remove the inner tube
before proceeding to demount the lower bead.
The rotation of the table top can be stopped at any time by releasing the pedal.
To rotate in the opposite direction, simply raise up the pedal.
WARNING
Always check that the size of the tyre is compatible with the size of the wheel before proceeding
with mounting.
- Before you start with tyre mounting operations, apply a liberal amount of tyre manufacturer approved rubber lubricant
to both beads (fig.19).
Lubricated beads require less force to mount/seat and are protected against torsional damage.
Make sure that the tyre is in good condition without any signs of undue wear or damage.
- Place the tyre over the wheel and tilt the tower forward. Position the bottom bead (fig.20) beneath the right hand side
of the mount/demount head. Press the table top control pedal to turn the table clockwise and mount the bead. Use the
drop centre by pressing the sidewall opposite the head to reduce tensional force on the bead as the wheel rotates
(fig.20).
- Once you have mounted the bottom bead, repeat the same steps for the upper bead (fig.21).
- Tilt the tower back, free the wheel and take it off the tyre changer.
To facilitate mounting/demounting of low-profile tyres, it is advisable to use the bead presser pliers (optional accessory).

TYRE MOUNTING

Special tools

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