Golden Dragon XML6125CLE, Repair Manual

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Wheel and Tyre
WT-19
3. Trouble at tyre body

Ply cords are loosened and cracked internally.
1) Phenomena: tyre ply cord layer has a 1-shaped rupture.
2) Cause: the tyre is subject to external impacts and damaged
during loaded traveling. Ply cords are loosened and snapped
due to overloading, under-pressure or excessive deflection
of tyre body.
3) Precaution: take care to ensure proper driving, prevent
collision with any obstacle or projecting object during
traveling or parking and avoid traveling on a road with
uneven and poor surface conditions. Maintain standard tyre
pressure and strictly avoid overloading. Take care of road
surface conditions during routine traveling and check the tyre frequently or regularly.
 Tyre damage due to underpressure and grinding on the road
1) Phenomena: tyre sidewall is severely deformed; tyre ply
cords are loosened and snapped; squeegee and ply cord
layer are detached;
2) Cause: the tyre is punctured by a sharp stone or nail so that
it leaks and is ground to damage due to under-pressure.
Long-term under-pressure and overloaded traveling causes
the tyre body to deform and the ply cords to loosen and
snap. Improper assembly of new tyres so that the inflating
valve leaks; presence of foreign matters in the inner tube so
that it is ground to damage due to under-pressure.
3) Precaution: it is necessary to be highly alert during traveling
and take reasonable and effective measures upon detection of
any anomaly. Overspeed is forbidden.
4. Trouble at tyre bead
 Tyre bead is damaged and ground.
1) Phenomena: tyre bead is damaged by external objects. The
lips of tubeless tyre bead are damaged. The tyre bead may
be partially or fully damaged and even its internal structure
may be damaged in severe cases so that the tyre is scrapped
or bursts
2) Cause: improper wheel rim is used for the tyre so that the
rim does not fit in with the curve of tyre bead seat and the
tyre bead becomes deformed for the long term. Partial
deformation of wheel rim may also damage the tyre bead.
Long-term under-pressure or overloading may aggravate the
deformation of tyre bead, cause it to rub against the wheel
rim and damage the tyre bead. Improper handling of the tyre
or failure to use a proper tool to install or remove a tubeless
tyre will also damage the tyre bead. Other external factors
May also scratch and damage the tyre bead.
3) Precaution: wheel rims that fit in with the tyres must be used.
Do not use deformed wheel rims. Maintain standard tyre
9-19