INSTRUCTION, USE AND
MAINTENANCE MANUAL
GB
Page 28 of 96
• Move to work position
B
(
Fig. 6
).
• Lower the mandrel arm completely. Roll the tyre on
the platform and hook it to clamp (
Fig. 33 ref. 1
).
• Lift the mandrel arm with the tyre hooked and turn
it counterclockwise by about 15-20 cm; the tyre
will position itself sideways with respect to the rim
Fig. 33
).
• Place the tool holder arm in “out of work” position
(
Fig. 18 ref. 1
); translate it to the inner side of
the tyre and hook it again into “working” position
(
Fig. 17 ref. 1
).
• Carry out the tools head 180° rotation until the hook
tool is moved onto the tyre side (see
Fig. 35
).
Fig. 35
• Move to work position
D
(
Fig. 6
).
• Move the tool forward until the reference notch
matches the external edge of the rim coincide at
about 5 mm from the rim itself.
• Move to work position
C
(
Fig. 6
).
• From the external side of the wheel, check the exact
position of the tool and, if necessary, correct it. Then,
turn the mandrel clockwise until the grippers reach
the lowest point (6 o’clock). The first bead should
now be inserted in the rim.
• Remove the grippers.
• Move to work position
D
(
Fig. 6
).
• Extract the tool from the tyre.
• Place the tool holder arm in “out of work” position
(
Fig. 18 ref. 1
); translate it to the outer side of
the tyre and hook it again into “working” position
(
Fig. 17 ref. 1
).
• Carry out the tools head 180° rotation until the hook
tool is moved onto the tyre side (see
Fig. 29
).
• Mount the grippers in the lowest point (6 o’clock)
outside the second bead.
• Move to work position
C
(
Fig. 6
).
• Turn the mandrel 90° clockwise until the grippers
are at 9 o’clock.
• Move the tool forward until the axis of the reference
notch matches that of the external edge of the rim
at about 5 mm from the rim itself (
Fig. 29
). Begin
clockwise rotation making sure that, after a 90° turn,
the second bead begins to slide in the rim groove.
Turn until the grippers reach the lowest point (6
o’clock). The second bead should now be inserted
in the rim.
• Move the tool away from the wheel, turn it over into
“out of work” position and remove the grippers.
• Lower the mandrel until the wheel rests on the
footboard.
• Move to work position
A
(
Fig. 6
).
• Close the mandrel jaws completely, making sure the
wheel is held up to avoid dropping.
MAKE SURE THAT THE WHEEL’S
HOLD IS SECURE TO AVOID IT
FALLING DURING REMOVAL. FOR
HEAVY AND/OR VERY LARGE
WHEELS USE AN ADEQUATE LIFT-
ING DEVICE.
• Translate the movable footboard to release the wheel
from the same mandrel.
12.7 Tyres with inner tube
12.7.1 Bead breaking
REMOVE THE LOCK NUT OF THE
INNER TUBE VALVE TO ALLOW
ITS EXTRACTION DURING TYRE
REMOVAL PHASES; REMOVE
THE NUT WHEN DEFLATING THE
TYRE.
The beading procedure is the same one described for
tubeless tyres.
WHEN BEADING WHEELS WITH
INNER TUBES, INTERRUPT THE
FORWARD MOVEMENT OF THE
BEADING DISC AS SOON AS THE
BEADS HAVE BEEN DISLODGED
TO AVOID DAMAGE TO THE INNER
TUBE OR TO THE VALVE.
7522-M004-1_B
NAV51.15 - NAV51T.15 - NAV51.15N
