Using The Roller To Demount The Second Bead; Use As A Mounting Help Device - Snap-On John Bean MH 310 PRO Manual De Operador

MH 310 PRO
MH 320 PRO
2
26
5-5
5-6
5-7
1
5-8
Utilisation
For MH 320 PRO bead presser:
Grip the lower disk fi rmly, inserting the bead breaker
lever in the slot in the disk supporting arm, activate
the device upstroke and at the same time rotate the
turntable (Fig. 5-5).
This operation allows you to detach the bead if it is
stuck and helps lift the cover. Distance the lower disk
from the work area.
Note: A certain pressure in the radial direction on
the lower disk grip is normal to counteract
the action of the turntable whose rotation
tends to push the disk outwards. The
lower disk cannot be locked for safety
reasons.
5.1.1 Using the roller to demount the
second bead
In many cases you can speed up demounting by
directly using only the bead presser roller to remove
the second bead.
To get the second bead out:
Place the roller under the lower side of the tyre.
•
Rotate the turntable and gradually bring the roller
•
upwards, so that the bead is pushed upwards until
the tyre comes out of the rim completely (Fig. 5-6).

5.2 Use as a mounting help device

A. Mount the fi rst bead. After having positioned the
mounting/demounting tool, position the roller (ref. 1)
and the tool (ref. 2) as shown in Fig. 5-7 and 5-8.
B. Lower the bead pusher so that the roller and the
bead pusher tool on the tire help keeping the bead into
the drop center (Fig. 5-8).
Before distancing the mounting/demounting tool from
the tyre changer machine, set the roller and the tool
pusher in the rest position.
Operator's Manual