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may therefore be restricted or unavailable,
e.g. power steering, lighting system and ABS.
The compressed-air supply fails. To steer, you
will require considerably more force. The
wheels could lock during braking. Also, the
spring-loaded parking brake can activate if
there is a loss of compressed air and the vehi-
cle may then brake uncontrollably. You could
lose control of the vehicle. There is a risk of an
accident.
Only use the battery isolator switch when the
vehicle is stationary.
Example: battery isolator switch
You can interrupt the voltage supply using the
battery isolator switches. This prevents short
circuits, which could create sparks that might in
turn cause a fire or an explosion. Vehicles for
hazardous material transport are equipped with
one or two battery isolator switches depending
on the ADR classification regarding the inter-
ruption of the voltage supply.
When you have safely parked the vehicle, you
can use the battery isolator switch, e.g. when
loading the vehicle in a hazardous goods area.
Only use the battery isolator switch when the
vehicle is stationary. Observe the notes in the
event window in the on-board computer. Move
the ignition lock to position 0 and remove the
key from the ignition lock. On vehicles with a
retarder, wait approximately 5 seconds after
switching the ignition off before interrupting the
voltage supply using the battery isolator switch.
If the auxiliary heating is switched on, wait for
the auxiliary heating run-on phase to end.
In a hazardous situation, the voltage supply can
be interrupted using the battery isolator
switches.
The disconnecting procedure up to the interrup-
tion of the voltage supply takes up to
10 seconds.
If the voltage supply is interrupted by the battery
isolator switch when the anti-theft alarm system
is primed, the anti-theft alarm is triggered.
Interrupting the voltage supply
X
Swing the þ cover : upwards.
X
Pull out switch pin ;.
or
X
Move switch pin = upwards.
All consumers are disconnected from the bat-
teries, apart from the digital tachograph.
Reconnecting the voltage supply
X
Push the þ cover : down until it engages
audibly.
Voltage supply
Z
103
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