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B - Tread wear indicators -arrows-.
It is necessary to replace the tyres when the tread wearing rea‐
ches the indicators -position 1- at the bottom of the grooves.
The points where tread wear indicators are found are identified
by the acronym TWI (Tread Wear Indicators), distributed at every
60 degrees -a- on tire perimeter.
In this situation, the groove depth is approximately 1.6 mm. How‐
ever, considering that a worn tire is more likely to skid on wet
surfaces, we recommend replacing a tire when the groove depth
reaches 3 mm.
Note
♦
This value may be different depending on each country's legal
requirements.
♦
The minimum profile depth is reached when the wear indicator
at the tread, adjusted at 1.6 mm of height, no longer displays
a profile.
♦
If the profile depth is close to the legally accepted depth, the
customer must be informed.
♦
The tires must also be replaced when they are cut, deformed,
or display other damage.
4.18.4
Tyre pressure (including spare wheel) -
check and correct if necessary
Special tools and workshop equipment required
♦ Tire inflation device -VAS 5216-
FOX 2004 ➤
Maintenance - Edition 07.2010
4. Service descriptions
55