Corghi Master J Manual De Uso página 157

a
rubber, called a liner. This liner helps to maintain air pres-
sure in the casing. This type of tyre must be mounted on
c
b
specific rims, on which the valve is fixed directly.
d
e
II - Rim (Wheel). The rim is the rigid metal part which
connects the vehicle hub to the tyre, on a fixed but non­
permanent basis.
i
g h
Rim profile The rim profile is the form of the section in contact
with the tyre. It comprises different geometric forms, which
ensure: simple tyre mounting (bead insertion in the well);
safe driving, in terms of the bead anchored in its seat.
f
The rim section shows its various parts: a) rim width – b)
shoulder height – c) tubeless anchoring (HUMP) – d) valve
hole – e) ventilation opening – f) off set – g) central hole
diameter – h) attachment hole centre to centre i) keying
j
diameter – j) rim well.
III - Air chamber (tube type tyres). The air chamber is a
closed ring-like rubber structure with a valve, which con-
tains pressurised air.
Valve. The valve is a mechanical device to inflate/deflate
c
a
the tyre and maintain air pressure inside the air chamber b
(or tyre in the case of tubeless tyres). It consists of three
parts: the valve closing cap (a) (to protect the internal
mechanism from dust and guarantee air tightness), an
internal mechanism (b) and the base (c) (the outer lining).
Tubeless Inflator. An inflation system which simplifies
inflating tubeless tyres.
Beading. Operation which takes place during inflation
and ensures perfect centring between the bead and the
EN
rim edge.
Bead pressing gripper. A tool intended for use when
mounting the upper bead. It is positioned so that it en-
gages the shoulder of the rim and maintains the upper
tyre bead inside the well. It is generally used for mounting
low profile tyres.
Air delivery regulator. Union allowing regulation of the
air flow.
Bead breaking. Operation used to detach the bead from
the rim edge.
Artiglio Master J Operator manual
157