Tyre Demounting - TECO UPH Manual De Instrucciones

fig. 9
- Deflate the tyre
- Lock the PAX wheel support (C) on the turntable
- Place the wheel with PAX tyre on the support(C)
- Insert the anti-rotation plug (D) in one of the fixing holes of the rim
- Select the appropriate cone N or O according to the size of the centring hole
- Install the quick ring-nut H
- Clamp the wheel by locking the nut H with the wrench (I)
fig.10
The Selector has four positions:
- position 1 – memorises and corresponds to the external diameter (small diameter) in
the demounting phase
- position 2 - memorises and corresponds to the internal diameter (large diameter) in
the demounting phase
- position 3 – memorises and corresponds to the bead mounting phase by external
and internal diameter
- position 4 – memorises and corresponds to the Clipé Support extraction phase
(Common procedure for Pax System with full width and clipé rest)
IMPORTANT
Before demounting the tyre, the selector must be calibrated in order to memorise the
tool position when demounting tyres of the same size.
Selector calibration
Note:
When working on a set of wheels of the same size, the tool positions can be memo-
rised by means of the Selector.
- Using the pneumatic lever switch (G), lower the arm of the cylindrical roller (B). fig.11
- Place the cylindrical roller on the edge of the rim. fig.11
- Place the selector (E) on position 1 and secure it using the handle. F. fig. 12
- Move the cylindrical roller arm to the lower part of the wheel. fig. 13
- Place the selector on 2. fig. 14
- Bring the roller into contact with the lower bead. fig. 15
- Press the rotation pedal and, by activating the pneumatic switch (G), gradually start
bead breaking; at the same time lubricate the bead with spray lubricant of the type
recommended by the tyre manufacturer or if not available with liquid lubricant, using
a special sprayer. fig. 16
- Completely bead break the bead from the rim. fig. 17
24

TYRE DEMOUNTING

Procedure for PAX standard tyres
SELECTOR FUNCTIONS
Bead breaking of the lower bead
UPH operator's manual