INSTRUCTION, USE AND
MAINTENANCE MANUAL
GB
Page 34 of 98
• Move the rim away from the tool by about 4-5 cm
to avoid possible unhooking of the bead from the
same tool.
• Move to work position
A
(
Fig. 8
).
• Translate the hook tool outwards until the reference
notch is 3 cm inside the rim.
• Insert the lever (
Fig. 44 ref. 1
) between rim (
Fig. 44
ref. 2
) and bead (
Fig. 44 ref. 3
) on the tool right.
1
2
3
Fig. 44
• Keeping the lever pressed, lower the wheel until the
edge of the rim is approximately 5 mm distant from
the hook tool then turn the mandrel counterclock-
wise keeping the lever (
Fig. 44 ref. 1
) pressed until
the tyre has been completely dislodged from the rim.
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.
12.7.3 Mounting
THROUGHOUT TYRE MOUNT-
ING/DEMOUNTING OPERATIONS,
CHECK THAT THE SELF-CEN-
TRING CHUCK CLAMPING PRES-
SURE IS CLOSE TO THE MAXIMUM
OPERATING VALUE (170 BAR).
• 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 CON-
TAIN NO WATER, HYDROCAR-
BONS, OR SILICON.
• Mount grippers (
Fig. 39 ref. 1
) on the external edge
of the rim in the highest point as shown in
Fig. 39
.
THE GRIPPERS MUST BE TIGHTLY
SECURED TO THE EDGE OF THE
RIM.
• Move to work position
B
(
Fig. 8
).
• Position the tyre on the footboard and lower the man-
drel (make sure that the grippers are in the highest
point) to hook the first tyre bead (internal bead).
• 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.
• Tilt up tool holder arm, unhook it and lift it plac-
ing it in “off-work” position (
Fig. 20 ref. 1
); use
the handle control to position the tool holder arm
on the inner side of the wheel then place it in work
position (
Fig. 19 ref. 1
) and secure with the safety
hook provided.
PAY ATTENTION WHEN REPOSI-
TIONING THE TOOL HOLDER ARM
TO AVOID CRUSHING HANDS.
ALWAYS MAKE SURE THAT THE
ARM IS CORRECTLY HOOKED TO
CARRIAGE.
7505-M002-4_B
NAV41.11N - NAV41T.11N - NAV41.13N - NAV41T.13N -
NAV41.13EI - NAV41T.13EI - NAV41.13SA - NAV41T.13SA