INSTRUCTION, USE AND
MAINTENANCE MANUAL
GB
Page 25 of 66
12.6.3 Mounting
WHEN DEMOUNTING VERY HEAVY
TYRES, IT IS IMPORTANT TO
MOVE THE WHEEL AS CLOSE AS
POSSIBLE TO THE BASE BEFORE
COMPLETING THE OPERATION.
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).
Tubeless tyre fitting is normally done with the disc
tool; if the wheel
is especially hard to fit, use the hook tool.
With beading disc
Proceed as follows:
• Secure the rim to the mandrel according to the proce-
dure described in paragraph “WHEEL CLAMPING”.
• Adequately lubricate the tyre beads and the rim bead
seat with a suitable lubricant using the provided
brush.
USE ONLY TYRE LUBRICANTS.
SUITABLE LUBRICANTS CONTAIN
NO WATER, HYDROCARBONS, OR
SILICON.
• Mount grippers (
Fig.
_
29 ref.
_
1
) on the external edge
of the rim in the highest point as shown in
Fig.
_
29
.
Fig.
_
29
1
THE GRIPPERS MUST BE TIGHTLY
SECURED TO THE EDGE OF THE
RIM.
• Move to work position
B
(
Fig.
_
6
).
• Lower the mandrel arm completely. Roll the tyre on
the platform and hook it to clamp (
Fig.
_
30 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.
_
30
).
Fig.
_
30
• Move to work position
C
(
Fig.
_
6
).
• Position beading disc (
Fig.
_
31 ref.
_
2
) so that it is
at approximately 1.5 cm (½”) from the edge of the
rim. Fitting clamp (
Fig.
_
31 ref.
_
1
) is at 11 o’clock.
Turn the mandrel until the grippers reach the lowest
point (6 o’clock).
Fig.
_
31
NAV11N - NAV11NT
NAV11EI - NAV11TEI
7505-M001-3_B
