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The RSS optimizes driving
characteristics and in emer-
gencies may help to prevent
accidents. But cannot comple-
tely guarantee.
3.1.5. PREV (Park Release Emergency
Valve)
PREV Buttons
Generally, brake control systems will be
located on the driver's side. It may be dif-
ferent on your vehicle according to the
vehicle's construction.
PREV Buttons
Black button (1):
Service brake button.
Red button (2):
Park brake button
When you are driving the trai-
lers, the red button must be
pushed position and the black
button
has
to
be
pulled
position.
3.1.5.1. Service Brake
Service brake
Thanks to the service brake, the trailer
can be made maneuvers without air con-
nections. The black button can be used
only without air connections on the
trailer.
When you push the black button, the
service brake will be disabled. When you
pull the black button, the service brake
will be activated.
If the service brake is used a
lot of times, without an air
connection, air pressure in
the system and braking power
may reduce.
When the air connections are de-
mounted, the service brake will be auto-
matically
activated.
When
the
air
connections are mounted, the service
brake will be automatically disabled.
