TECO UPH Manual De Instrucciones página 29

DEMOUNTING-MOUNTING THE
(Procedure with the use of the bead lifting
The bead lifting and bead pressing arms of the UPH are intended to help the operator
in the tyre demounting and mounting phases.
When clamping the wheel with outside rim hold, proceed as follows:
- Prepare the clamps of the turntable at a slightly higher measurement than that of the
wheel, place the wheel on the turntable, position the rim clamp arm (V) in the work-
ing position Fig.44, activate valve (G) so as to press the wheel on the turntable, then
clamp the wheel with the special pedal.
When working on rims with reverse drop centre, use the cone extension (G1) to
reach the rim hole.
N.B. This facilitates the insertion of the sliding clamp between the tyre and the rim
Fig.44.
1) Position the mount/demount tool (Fig. 45).
WARNING
The positioning and the removal of the operating arm of the tyre changer from
the edge of the rim can be carried out only after having brought UPH arms out-
wards in non-working position.
If the tyre has very stiff walls that prevent correct positioning of the mount/demount
tool on the rim edge, follow these steps:
a – move the arm (A1, Fig. 8) to its working position.
b – move the bead pressing tool (B1, Fig. 8) to the tyre and close to the mount/de-
mount tool.
Use the lever (G, fig. 8) to press down on the tyre to create enough space to position
the mount/demount tool correctly and to insert the bead lifter tool (Fig. 45).
WARNING
Bringing the bead-pressing tool against the tyre creates a danger: the opera-
tor's hands could be crushed between the tool and the rim. Be careful and keep
your hands far from the rim.
c – Clamp the mount/demount tool, insert the bead lifter tool and raise the UPH arm.
2) Use the lever (G, Fig. 8) to raise the arm (A1, Fig. 8) and move it outwards to posi-
UPH operator's manual
NON PAX TYRES
and bead pressing arms)
Centring function
DEMOUNTING THE TIRE
GB
29