Corghi MONSTER AGTT Manual De Uso página 56

DEMOUNTING THE FRONT BEAD:
- Press the "tool tangency" button to position the wheel with respect to the demounting
tool� (fig� 25)�
Position the tool so it is in contact with the tyre, making sure that a safe distance is kept
from the rim in order not to bump it during the subsequent search phase; simply make
any small corrections manually�
- Move the tool and turn the turntable at the same time (fig� 26)�
- Activate the Search command near the channel�
- Once the bead is hooked, return the tool to the horizontal position using the Search
command (Fig� 27)�
- Move the tool outward until moving the external edge of the rim so it is lined up with
the vertical notch on the tool tab (fig�28)�
- Use the control lever (Fig�13 n�5) to start with the automatic demounting phase, mov-
ing the tool properly to the end of stroke in order to move the bead outside the rim
(Fig�29)�
- Activate the pedal command for rotating the turntable in order to permit the bead to
exit the rim (Fig�30)�
- When demounting is complete, move the tool to the right, away from the rim and acti-
vate the demounting lever for the opposite direction, the rim will return to the original
position and the tool will return horizontal�
- If there is an inner tube, place the wheel on the floor and move back the rim to create
the space necessary to remove it (Fig� 31)�
REAR BEAD DEMOUNTING:
- Use the S�T�S� command to move the tool unit from the other side of the wheel�
- At this point, turn the turntable�
- Move the bead breaker disc near the bead and start to push it outward� Be careful that
the bead does not tip on the rim edge while it is being pushed out� If necessary, as soon
as the disc has passed the rim edge, lower the turntable a few cm� This will decrease
the bead tension and make it easier to demount the wheel� (fig� 32)�
NOTE
For some types of rims, such as with a double well or skidder, a demounting tool and a
manual lever must be used�
Activating the search command (command 4 fig� 13) insert the tool between the rear bead
and the rim as shown in (fig� 32a) until hooking the bead� Return the tool to a horizontal
position� At this point, turn the turntable and use the shaped profile of the tool to push
the bead forward until the tyre is completely demounted� If the tyre has difficulty in
bypassing the rim edge, use the provided manual lever�
To hook the bead in the case of narrow rims with a reduced well, it may be helpful to turn
the turntable in an anticlockwise direction�
56 Operator's manual MONSTER AGTT