The purpose of an air brake system on heavy duty vehicles is to convert air pressure to mechanical energy to activate the foundation brakes. Federal Motor Vehicle Safety Standard 121 dictates how this is to be done for over-the-road vehicles.

WABCO is a leading global supplier of technologies that improve the safety, efficiency and connectivity of commercial vehicles. Explore our new WABCO Inform Catalog.

WABCO is a leading global supplier of technologies that improve the safety, efficiency and connectivity of commercial vehicles. Explore our new Inform.

This manual contains service information for the WABCO Anti-Lock Braking System (ABS) and ABS with Automatic Traction Control (ATC) for trucks, tractors and buses.

The WABCO Anti-Lock Braking System (ABS) is an electronic system that monitors and controls wheel speed during braking. The system works with standard air brake systems.

Anti-Lock Braking System (ABS) ABS is a system designed to provide and maintain the best possible traction and steering control during an extreme braking event. te modulator valve(s) to hold, apply or release the brakes as needed. ABS

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The brake force for the wheel brake is produced by the force of the preloaded springs of the Tristop spring brake actuators (19) as described under ‘Parking Braking System’ although the spring-loaded portions are not ex-hausted fully but only …

mmercial vehicles. In 1996, WABCO was the first supplier to launch the series production of an Electronic Braking System (EBS) on a larger scale. As a global leader in this sector, WABCO supplies EBS for light to heavy commercial vehicles with trailers or semitrailers as