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Instruments and controls
28
Using the trailer service brake when
parking
To ensure that the braking effect when parking a
vehicle combo does not diminish due to air leakage,
the spring brakes only are applied on the truck when
parking. However, in certain situations, such as
parking on slippery surfaces or on steep slopes with
heavy loads, it can be advantageous to apply the trailer
service brakes as well.
To activate the trailer service brakes for parking, pull
the blocking valve button out until it remains out. The
trailer brakes will now be activated as long as there is
pressure in their brake systems.
Note!
As the pressure will gradually leak
out from the trailer, this method
should only be used temporarily and
with the engine running. If the
vehicle needs to be parked in this
way (without the engine running) the
wheels must be chocked or you must
check that the vehicle remains
parked (does not roll away) even
without the help of the trailer's
brakes.
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