Head Positioning - Hofmann monty 3300 Mode D'emploi

1
5.1.4a
5.1.5
5.1.6
5.1.7
2

5.1.1.2 Head Positioning

Procedure:
• Lift the mount/demount head completely out of the work
zone, with the control (1, Figure 5.1-4a).
DURING THE CLOSURE OF THE HEAD, MAKE SURE
THAT ITS POSITION DOES NOT KNOCK INTO THE
WHEEL.
• Activate the pedal control (2, Figure 5.1-4a) to bring the
Arm into the working position on the wheel.
• Bring the tool into contact with the edge of the rim and
lock it in place.
The tool automatically moves away from the rim in a
vertical and radial sense by about (1/25") 1 mm; this
is necessary to prevent damage to the rim.
Note: once the mount/demount head is positioned
properly, with the control (1,Figure 5.1-4a),
matching wheels may be changed without
having to reset the head.
the operative arm, lower the tyre shoulder
with the bead breaker disc, in order to make
room for the moving head.
Note: The plastic inserts inside the mounting/
demounting head must be replaced regularly.
Each machine is supplied with various spare
inserts (in the accessories box).
• Insert the bead lifting tool under the bead and over the
support of the mount/demount tool. Lift the bead onto
the mounting fi nger. To facilitate this operation, press
with left hand on the bead in position diametrically
opposite to that of the tool. If desired, the bead lifting
tool can be removed after lifting the bead onto the
fi nger (Fig. 5.1-5).
• Rotate the turntable clockwise and at the same time
push down on the tire sidewall to move the bead into
the drop-center of the rim (Fig.5.1-6).
• Repeat the process for removing the lower bead. With
left hand, lift the bead in position diametrically opposite
the tool to keep it in the drop center (Fig. 5.1-7). Move
the swing arm aside and remove the tire.
In the closing of
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