N.B.: The valve hole may be asymmetrical to
the centre of the rim. In this case position and
insert the inner tube as shown in fig. 31.
Insert the valve through the hole and fix it
with its ring nut.
20) Place the inner tube in the rim well.
N.B.: to facilitate this operation, turn the
turntable at the same time clockwise.
21) Turn the turntable until the valve is at the
bottom (at 6 o'clock).
22) Inflate the inner tube a little (until it has
no folds) so as not to pinch it while mounting
the second bead.
23) Attach an extension to the valve and then
remove the fastening ring nut.
N.B.: The purpose of this operation is to allow
the valve to be loose and not be ripped out
when the second bead is mounted.
24) Move the control console to working
position C.
25) Lift the wheel again and attach the rim
gripper outside the second bead, approx.
20 cm to the right of the valve (see Fig. 32).
26) Turn the turntable clockwise until the
gripper is in the 9 o'clock position.
58
27) Move the tool holder arm to the work-
ing position;
28) Move the tool forward until its red refer-
ence dot is aligned with the external edge of
31
the rim, 5 mm away from it.
29) Turn the turntable slightly clockwise until
the bead guide lever (see fig. 33), available
on request, can be inserted in its seat in the
hook tool.
30) Hold back the lever, which will guide the
bead into the rim well and continue rotation
until the tyre is completely mounted.
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- User Manual TB125
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