Tyres - Mercedes-Benz Unimog Operating Instructions Manual

Important safety notes
338
Useful information
These Operating Instructions describe all the
models and standard and optional equipment
of your vehicle that were available at the time
of going to print. Country-specific differences
are possible. Bear in mind that your vehicle
may not be equipped with all the functions
described. This also applies to safety-relevant
systems and functions.
Read the information on qualified specialist
workshops ( Y page 30).
Important safety notes
Operating and road safety
General notes
Tyres are of particular importance to the oper-
ating and road safety of the vehicle. For this
reason, check the tyre pressures, tyre tread
and tyre condition on a regular basis.
A tyre dealer or a qualified specialist work-
shop will be able to provide further informa-
tion on:
tyre load-bearing capacity (LI Load Index)
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tyre speed rating
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tyre age
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causes and consequences of tyre wear
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measures to be taken in the event of tyre
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damage
types of tyre for specific regions, areas of
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operation or conditions of vehicle use
interchangeability of tyres, etc.
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Tyre pressure
G
WARNING
The tyre temperature and pressure increase
when the vehicle is in motion. Reducing the
pressure of warm tyres leads to a tyre pres-
sure that is too low when the tyres have
cooled. If the tyre pressure is too low, it may
cause the tyre to burst, especially when the
load or speed increases. There is a risk of an
accident.
You should never reduce the pressure of
warm tyres. Observe the specified tyre pres-
sure.
Check the specified tyre pressures regularly
when the tyres are cold, at least every two
weeks and before long journeys. The tyre
pressure in tyres on the same axle must
always be the same.
If the tyre pressures are too low, this leads
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to an excessive build up of heat in the tyres,
increased tyre wear, a deterioration in driv-
ing stability and increased fuel consump-
tion.
If the tyre pressures are too high, this leads
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to an increased braking distance, a deteri-
oration in tyre traction and increased tyre
wear.
Valve caps on the tyre valves protect the
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valve cores from moisture and dirt. For this
reason, always screw the valve caps tightly
onto the tyre valves.
In the event of repeated pressure loss from
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the tyres, exterior damage or leaking tyre
valves may be the cause. Check the tyre
pressures regularly.
Further important information on tyre pres-
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sures ( Y page 340).
Observe the tyre pressure table
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( Y page 342).
Tyre tread
G
WARNING
Insufficient tyre tread will reduce tyre trac-
tion. The tyre is no longer able to dissipate
water. This means that on wet road surfaces,
the risk of aquaplaning increases, in particular
where speed is not adapted to suit the driving
conditions. There is a risk of accident.
If the tyre pressure is too high or too low, tyres
may exhibit different levels of wear at differ-
ent locations on the tyre tread. Thus, you
should regularly check the tread depth and