Bead Breaking - Corghi Artiglio Master 26” MI Manuel D'utilisation

DANGER
Take great care when mounting the tyre. The rim and/or the tyre may be damaged
accidentally, with the risk of the tyre exploding during the inflation stage.
European style high-performance wheels (asymmetric curvature) - fig. 10b: Some European
wheels have rims with very pronounced curves C, except in the area of the valve hole A
where the curvature is less pronounced B. On these wheels the bead must first be broken
in correspondence with the valve hole, on both the top and bottom sides of the wheel.
Wheels with "low pressure indicator system" - fig. 10c (Corvette, BMW, Lamborghini
etc. wheels): Some types of high performance wheels are equipped with a low pressure
indicator system featuring a pressure transmitter B. The pressure transmitter is fixed to
the rim by a belt C and is on the side opposite the valve hole A. To avoid damaging this
device, on these wheels the bead must first be broken in correspondence with the valve
hole, on both the top and bottom sides of the wheel.
WARNING
Bead breaking is well known to be a dangerous operation. It must be carried out in
accordance with the instructions below.
Car, off-road vehicle and van wheels
- Use the Display for setting and displaying the wheel data fig. 9a, checking that the wheel type
(normal or PAX) is illuminated. Set the rim diameter value using the relative keypad 4.
The diameter of the rim in inches is shown on display 3. The figure displayed consists
of two figures separated by a decimal point. As this value is set both the self-centring
turntable and the two units with bead breaker disc automatically move to the ideal
radial position for performing the job.
- Load the wheel on the lift 2 fig. 8a.
- Operate the Lever 8 fig. 9b and lift the wheel to position it in its working position on the
turntable (fig. 11). When the wheel is placed on the turntable, the mobile pin in a radial
position on the turntable must also be fitted into one of the fixing bolt holes (fig.12)
- Press the Pedal 3 fig. 9c to release the turntable clamping system. Take hold of the centring
handle 1 and adjust the position of the wheel by hand to fit the handle into its centre
hole fig. 12a. Release the Pedal 3 fig. 9.c The wheel clamping system is now active and the
wheel is locked to the turntable by means of the centring handle, moving as one with it.
- Completely deflate the tyre by removing the valve.
- Place the top bead breaker unit in the working position (axis of the arm horizontal) by
lowering it by hand using the fixed gripper lever provided. Operate the Lever fig. 9b to
bring the disc almost into contact with the tyre. The wheel data have been set correctly
if the radial gap between the rim of the wheel and the edge of the bead breaker disc
is about 5 mm. Lower further until the bead breaker disc is touching the tyre.
- Press the Button 3 (fig. 9b) once.
- Press the Pedal 1 fig. 9c to rotate the turntable. The bead breaker disc is moved in a
radial direction around the edge of the rim as the wheel turns, completely separating
the top bead of the tyre from the rim (fig. 13).
- Operate the Lever 1 fig. 9b to return the entire unit upward, removing it from the working
Artiglio Master operator's manual

Bead breaking

EN
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