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6.3 MOUNTING THE TYRE
WARNING: This checking of tyre and rim is of th utmost importance to prevent tyre explosion during the
inflating operations. Before beginning mounting operation make sure that:
- the tyre and the cord fabric are not damaged. If you note defects DO NOT mount the tyre.
- The rim is without dents and is not warped. Attention with alloy rims, dents cause internal micro-cracks
not visible to naked eye. This can compromise the rim and can also be a source of danger especially during
inflation.
- The diameter of the rim and tyre are exactly the same. NEVER try to mount a tyre on a rim if you cannot
identify the diameters of both.
• Lubricate the tyre beads with the special grease in order to avoid damaging them and to facilitate the mounting operations.
Never place your hands between the wheel rim and the clamps during the locking stage or you will risk
crushing them.
• For 10 to 18 inch wheels lock the rim using the inner part of the clamps.
• For 12 to 20 inch wheels lock the rim using the outer part of the clamps.
Note: When you are working with rims of the same size, it is not necessary always to lock and unlock the mounting bar; just
move the horizontal arm (N) sideways with the mounting arm (M) locked.
Do not place your hands on the wheel: when moving the arm to its working position your hand
could be crushed between the rim and the mounting head.
• Move the tyre so that the bead passes below the front section of the mounting head and is brought up against the edge of the
rear section of the mounting head itself.
• Keeping the tyre bead pressed down into the wheel rim channel with your hands, press down on the pedal (Z) to rotate the
turntable clockwise. Continue until you have covered the entire circumference of the wheel rim (Fig. 12).
To prevent industrial accidents, keep hands and other parts of the body as far as possible from the
tool arm when the table top is turning.
• Insert the inner tube (if there is one).
• Repeat the same operations to mount the upper side of the tyre.
NOTE: Demounting and mounting are always done with the clockwise turntable rotation. Anticlockwise rotation
is used only to correct operator's errors or if the turntable stalls.
Fig. 11
32
Fig. 12
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