INSTRUCTION, USE AND
MAINTENANCE MANUAL
GB
Page 32 of 66
• Insert the bead wire on the rim with the stop ring
fitted (if the rim and bead wire feature fixing slits,
they must be in phase with each other).
• Move to work position
C
(
Fig.
_
6
).
• Place the tool holder arm on the external side then
lower it into “working” position (
Fig.
_
14 ref.
_
1
) with
the beading disc facing the wheel. If the outer edge
ring is not sufficiently fitted on the rim, position the
mandrel until the bead wire is near the beading disc.
Move the beading disc forward and then turn the
mandrel until the housing of the O-Ring (if featured)
is uncovered.
• Lubricated the O-Ring and place it in its housing.
• Move to work position
B
(
Fig.
_
6
).
• Position the bead wire (
Fig.
_
44 ref.
_
1
) on the rim,
fit the stop ring with the help of the beading disc as
shown in
Fig.
_
44
.
Fig.
_
44
• Tilt up tool holder arm placing it in “off-work” posi-
tion (
Fig.
_
15 ref.
_
1
) after it has been unlocked.
• Position mobile platform (
Fig.
_
1-2 ref.
_
15
) directly
under the wheel and lower the mandrel until the
wheel is resting on the platform.
• Close the mandrel jaws completely and translate
the footoboard outwards until the rim has been
completely removed, making sure the wheel is held
up to avoid dropping.
CLOSING THE MANDREL CAUSES
THE WHEEL TO FALL. ALWAYS
MAKE SURE THAT NO ONE IS
STANDING BY ACCIDENT IN THE
WORK AREA.
THE REMOVAL OF THE BEADS
FROM THE RIM CAUSES THE
TYRE TO FALL. ALWAYS MAKE
SURE THAT NO ONE IS STAND-
ING BY ACCIDENT IN THE WORK
AREA.
WHEN DEMOUNTING VERY HEAVY
TYRES, IT IS IMPORTANT TO
MOVE THE WHEEL AS CLOSE AS
POSSIBLE TO THE BASE BEFORE
COMPLETING THE OPERATION.
PAY ATTENTION WHEN REPOSI-
TIONING THE TOOL HOLDER ARM
TO AVOID CRUSHING HANDS.
ALWAYS MAKE SURE THAT THE
ARM IS CORRECTLY HOOKED TO
CARRIAGE.
12.8.2 Mounting
THROUGHOUT TYRE MOUNT-
ING/DEMOUNTING OPERATIONS,
CHECK THAT THE SELF-CEN-
TRING CHUCK CLAMPING PRES-
SURE IS CLOSE TO THE MAXIMUM
OPERATING VALUE (150 BAR).
• Place the tools holder arm in off-work position
(
Fig.
_
15 ref.
_
1
); if it has been removed, fix the rim
to the mandrel as described in “WHEEL CLAMPING”
paragraph. If the wheel features an inner tube, posi-
tion the rim with the valve slot facing downwards
(at 6 o’clock).
• Lubricate the entire bead seat of the rim and the
tyre beads.
• Move to work position
B
(
Fig.
_
6
).
• Position mobile platform (
Fig.
_
1-2 ref.
_
15
) so as
to allow the upward motion of the tyre (if the wheel
features an inner tube, position the rim with the valve
slot facing downwards at 6 o’clock).
• Place the mandrel in order to centre the rim on the
tyre.
• Operate the movable footboard forward translation
in order to insert the rim in the tyre (in case of air
tube tyres, make the valve re-enter not to damage it).
Move forward until the rim is completely inserted
in the tyre.
7505-M001-3_B
NAV11N - NAV11NT
NAV11EI - NAV11TEI
