Preparation and setup
51
Pressure loss in supply line
Impact on service brake system
If the pressure in the supply line drops by at least 1 bar per second, automatic braking of the trailer is
initiated before the pressure in the supply line has fallen to 2 bar. This ensures that the automatic
braking of the service brake system takes effect and that the ABS system is regulated.
Pressure loss in supply line
Impact on parking brake system
If the spring-loaded brake system is released (red button pressed), the park valve is pushed out
automatically, while the parking brake remains disengaged. This ensures a consistent pressure level
across the connections. If the reservoir pressure continues to decline, the connections are vented
simultaneously, resulting in automatic actuation of the spring-loaded brake system to prevent the trailer
from rolling away.
Automatic emergency braking
Push in the red button. Reduce the pressure to 0 bar (disconnect towing vehicle supply); the red button
must spring out and emergency braking must be initiated.
Parking brake valve
Apply pressure from towing vehicle. Push in the park valve (red button); at least 5 bar in reservoir; pull
out the park valve (red button); parking brake must be depressurised (to 0 bar); vehicle is braked.
There must be no persons in the danger zone during coupling and uncoupling.
Before travel, the spring-type cylinders must be manually released via the
parking valve.
This section provides brief instructions on using the compressed air brake system.
Comprehensive information is available from the brake manufacturer:
