Mounting And Demounting General Cautions; Use As A Demounting Help Device - Snap-On John Bean MH 310 PRO Manual De Operador

MH 310 PRO
MH 320 PRO
24
5-1
5-2
5-3
5-4
Utilisation
5.0 Mounting and demounting
General precautions
BRING THE BEAD PUSHER DEVICE IN THE REST
POSITION EVERY TIME IT IS NOT USED, THAT
IS, BACK OFF THE BEAD PUSHER ROLLER AND
DISTANCE THE ARMS FROM THE WORK AREA.
CARRY OUT THE POSITIONING OF THE BEAD
PUSHER ARM AND THE ROLLER ONLY WITH THE
SELF-CENTRING NOT OPERATED. TO AVOID
CRUSHING HAZARDS DO NOT INTERVENE ON THE
REPOSITIONING OF THE DEVICE WHEN THE SELF-
CENTRING IS ROTATING.
TO AVOID RISKS OF INTERFERENCE, ENSURE
THAT THE ROLLER IS IN BACK OFF POSITION
EVERY TIME YOU CARRY OUT THE MOVEMENT
OF THE MOUNTING/DEMOUNTING TOOL OF THE
TYRE CHANGER MACHINE.
5.1 Use during demounting
A. To make the locking of wheels with hard or lowered
tyres easier, the operator can use the rim presser
provided with the bead presser.
Apply the rim presser (ref. 1 Fig. 5-1) on the bead
presser tool ref. 2, position it at the centre of the rim
and lower the rim suffi ciently so that the clamps can
lock the rim (Fig. 5-2).
B. After positioning the mounting/demounting tool,
position the roller around 2 cm (3/4") from the edge of
the rim. Lower the side of the tyre to facilitate insertion
of the bead-lifting lever (fi g. 5-3). Set the roller in the
rest position. To facilitate lifting of the bead on the
mounting tongue, place the bead presser tool at 180°
to the mounting tool, then press until the bead is in the
channel. This action allows you to lift the bead over
the mounting tool tongue without stressing the tyre.
Demount the fi rst bead as described in the tyre changer
user manual.
C. Position the lower disk next to the lower rim edge.
For MH 310 PRO bead presser:
Grip the disk handle fi rmly, activate the device upstroke
and at the same time rotate the turntable (Fig. 5-4).
Operator's Manual