INSTRUCTION, USE AND
MAINTENANCE MANUAL
GB
Page 21 of 68
Fig. 23
B.
If the wheel is especially hard, it is not possible to
carry out the procedure described in point
A
. A
different procedure will be necessary: use the hook
tool and follow this sequence of operations:
• Move to working station
A
(
Fig. 11
).
• Position the roll holder arm on the outer side of the
wheel.
• Put the hook (
Fig. 24 pos. 1
) into the roll (
Fig. 24
pos. 2
), as shown in
Figure 24
, and block it in posi-
tion by inserting the pin (
Fig. 24 pos. 3
).
• Bring forward the hook, inserting it between the rim
and the bead until it is secured to the bead itself (see
Fig. 24
).
Fig. 24
7503-M002-6_B
NAV26HW - NAV26HW.S - NAV26HW.ST
Fig. 22
PAY ATTENTION WHEN REPOSI-
TIONING THE ROLL HOLDER ARM
TO AVOID HAND CRUSHING.
H.
Move to work position
C
(
Fig. 11
) and repeat the
operations described in points
F
until the tyre has
been completely beaded.
12.7.2 Demounting
THROUGHOUT TYRE MOUNT-
ING/DEMOUNTING OPERATIONS,
CHECK THAT THE SELF-CENTRING
MANDREL CLAMPING PRESSURE
IS CLOSE TO THE MAXIMUM
OPERATING VALUE (130 BAR)
(NAV26HW - NAV26HW.S).
Tubeless tyres can be removed in two ways:
A.
If the wheel does not present particular problems,
continuing beading operation will completely dis-
lodge the beads from the rim. The inner bead,
pushed by the roll, presses against the outer one
till it has been completely removed (see
Figure 23
).
