1Removing The Tires; Head Positioning - Hofmann monty 1520-2 Manual De Operador

32
5.1.4
5.1.5
5.1.6
5.1.7
monty 1520-2
5.1.1 Removing the tires
BEFORE PROCEEDING WITH THE TYRE
EXTRACTION, CHECK THAT BOTH BEADS ARE
COMPLETELY BROKEN.

5.1.1.1 Head Positioning

Procedure:
• Position the mount/demount head in contact with
the rim edge and lock it into place: the tool
automatically moves away from the rim edge
vertically. Turn the adjustment knob until the mount/
demount head clears from the rim flange about 2
mm (1/16"): this is necessary to avoid rim damage
(Fig 5.1-4).
Note: once the mount/demount head is
positioned properly, matching wheels may
be changed without having to reset the
head.
Note: the plastic insert inside the mount/demount
tool must be periodically replaced.
• Insert the bead lifting tool under the bead and over
the support of the mount/demount tool. Lift the bead
onto the mounting finger. 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 finger (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.
Operator's Manual
USA - CANADA