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On-board computer event window
166
Trailers/semitrailers
Display messages
wr
Wheel brake overload
hr
Check tyre pressure
òr
Starting-off aid
active
ór
Additional axle
raised
Possible causes/consequences and M Solutions
Supplementary text Û:
The temperature of one of the drum brakes/disc brakes on the tractor
vehicle is too high. The drum brake/disc brake may overheat.
G
WARNING
The vehicle's driving and braking characteristics may change. Also
observe the information in the separate operating instructions provi-
ded by the trailer/semitrailer manufacturer.
There is a risk of an accident.
X
Drive on carefully.
X
Shift to a lower gear.
X
Brake the vehicle with the continuous brake.
X
Only depress the brake pedal if the continuous brake cannot decel-
erate the vehicle sufficiently.
X
Have the brake system checked at a qualified specialist workshop.
On at least one of the trailer/semitrailer tyres, the tyre pressure is too
low.
G
WARNING
Driving/braking characteristics may change. Also observe the infor-
mation in the separate operating instructions provided by the trailer/
semitrailer manufacturer.
There is a risk of an accident.
X
Stop the vehicle without steering or braking suddenly. Pay attention
to the traffic conditions.
X
Check the tyre pressure and, if necessary, correct it.
The starting-off aid on the trailer/semitrailer is activated.
X
Observe the separate operating instructions issued by the trailer/
semitrailer manufacturer.
The leading/trailing axle on the trailer/semitrailer is raised.
X
Observe the separate operating instructions issued by the trailer/
semitrailer manufacturer.
Adapt your driving style
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