INSTRUCTION, USE AND
MAINTENANCE MANUAL
GB
Page 31 of 96
THE VALVE HOLE COULD BE
IN AN ASYMMETRIC POSITION
WITH RESPECT TO THE CENTRE
OF THE RIM. IN THIS CASE IT IS
NECESSARY TO POSITION AND
INTRODUCE THE INNER TUBE AS
SHOWN IN FIGURE 39.
Fig. 39
Introduce the valve in the hole and fix it with the pro-
vided ring nut. Introduce the inner tube in the central
groove of the rim (to make this operation easier, it is ad-
visable to simultaneously turn the mandrel clockwise).
• Turn the mandrel and position the valve downwards
(6 o’clock).
• To avoid damaging the inner tube, slightly inflate it
when inserting the second bead.
• To avoid damaging the valve when fitting the second
bead, remove the fixing ring nut and mount an exten-
sion on the same valve.
• Move to work position
C
(
Fig. 6
).
• Lift the mandrel and mount the grippers (
Fig. 40
ref. 1
) on the rim outside the second bead at about
20 cm from the inflating valve on the right.
• Turn the mandrel clockwise until grippers (
Fig. 40
ref. 1
) are positioned at 9 o’clock.
Fig. 40
• Place the tool holder arm in “working” position
(
Fig. 17 ref. 1
) on the outer side of the tyre.
• Place the hook tool in work position and bring the
tool holder arm forward until the axis of the refer-
ence notch matches that of the outer edge of the rim
at a distance of 5 mm.
• Turn the mandrel clockwise until lever (
Fig. 41
ref. 1
) is introduced in the housing obtained on the
hook tool.
• Turn the mandrel with lever (
Fig. 41 ref. 1
) hooked
until complete insertion of the tyre outer rim.
• Remove lever (
Fig. 41 ref. 1
), grippers (
Fig. 41
ref. 2
) and extract the hook tool by turning the man-
drel counterclockwise and translating it outwards.
Fig. 41
• Tilt up tool holder arm placing it in “out of work”
position (
Fig. 18 ref. 1
) after it has been unhooked.
7522-M004-1_B
NAV51.15 - NAV51T.15 - NAV51.15N
