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vehicle, e.g. when carrying out rescue opera-
tions using the winch.
You can find further information about the park-
ing brake on the trailer/semitrailer in the man-
ufacturer's operating instructions.
Applying the parking brake
X
Move parking brake lever
?
from release
position
1
to fully applied position
2
, push
it downwards and engage it.
If you cannot move the parking brake lever
further, then it is engaged and the parking
brake has been applied.
The red
!
indicator lamp in the instrument
cluster lights up.
Trailer/semitrailer with EC brake system:
when the trailer/semitrailer is attached, the
parking brake acts on the service brake of the
trailer/semitrailer.
In vehicles with four air-sprung axles, the trail-
ing axle lowers automatically when you apply
the parking brake. As a result, braking per-
formance is increased. As the vehicle briefly
lowers, the yellow
!
indicator lamp
flashes in the instrument cluster. If the trailing
axle has not lowered, the yellow
!
indica-
tor lamp flashes continuously when the igni-
tion has been switched on. After the key has
been removed from the ignition, the yel-
low
!
indicator lamp flashes for another
ten minutes and then goes out.
If the trailing axle has not lowered, secure the
vehicle in particular against rolling away.
Have the trailing axle checked immediately at
a qualified specialist workshop.
Testing the parking brake
X
Apply the parking brake.
X
Press the top of parking brake lever
?
. While
doing so, move parking brake lever
?
beyond
fully applied position
2
into control position
3
and hold it.
During the test, the vehicle combination is
only held by the force exerted by the spring-
loaded brake of the tractor vehicle. The
trailer/semitrailer brake is released.
The vehicle must not move.
X
If the force exerted by the spring-loaded
brake cannot hold the vehicle combination,
secure the tractor vehicle and trailer/semi-
trailer with chocks.
X
Move parking brake lever
?
from control
position
3
back to fully applied position
2
and engage it.
Releasing the parking brake
X
Pull parking brake lever
?
upwards from fully
applied position
2
and swing it up into
released position
1
as far as it will go.
The red
!
indicator lamp in the instrument
cluster goes out.
If the red
!
indicator lamp in the instru-
ment cluster does not go out, the spring-loa-
ded brake circuit charge pressure is too low.
To tow the vehicle, you can also manually
release the spring-loaded parking brake cylinder
Frequent-stop brake
G
WARNING
When securing the vehicle against rolling
away with the frequent-stop brake, the brak-
ing pressure may be too low. The vehicle could
roll away even though the frequent-stop brake
is engaged. There is a risk of an accident.
Never leave the driver's seat with the fre-
quent-stop brake activated and be prepared
to apply the brakes. If the vehicle begins to
roll, apply the service brake.
G
WARNING
If you brake in wintry road conditions while
the frequent-stop brake is activated, the
wheels may lock shortly before stopping.
Even if you take your foot off the brake pedal,
the wheels remain locked. The vehicle may
skid or slip away, e.g. on uphill or downhill
gradients. There is a risk of an accident.
Never activate the frequent-stop brake in win-
try conditions.
G
WARNING
If you do not stop the vehicle using the service
brake, e.g. when rolling to a stop, the fre-
quent-stop brake will not be activated. The
248
Brakes
Driving mode
Содержание Actros 2017
Страница 1: ...Actros Arocs Antos Operating Instructions Mercedes Benz...
Страница 342: ...Observe the additional instructions and infor mation on batteries Y page 366 340 Winter operation Driving mode...
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Страница 436: ...Order no 6462 9533 02 Part no 960 584 95 81 Edition 09b 17 9605849581F 9605849581...