ProLine 124-221-321-324 Operator manual 135
UK
10.1.f. Tyre mounting/demounting
The lifting arms and bead pressing tool with
which the accessory is equipped, are designed
to help the operator during cover demounting
and mounting.
Clamping
In the clamping phase of the wheel with external
grip, proceed as follows:
- Arrange the jaws of the turntable at a measure
slightly higher than the wheel, place the pre-
viously bead broken wheel on the turntable,
place the arm with cone in the rim central
hole (Fig. 46), activate the valve so as to
press the wheel on the plate (Fig. 47), then
clamp the wheel with the appropriate pedal.
- When working on reversed channel rims, in
order to reach the rim hole, use the adjusting
screw of the tool on the cone.
Demounting
- Remove the centring cone, tilt the pole for-
ward and position the mounting/demounting
tool. Position the rim presser roller tangent
to the external diameter of the rim (Fig.
48), press the down lever until creating the
necessary space between the mounting/
demounting tool and the cover in order to
insert the bead lift (fig. 49).
46
47
48
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