Truck Air Brake System Diagram

Reading air brake diagrams tp2006 september 2001 4 part i.

Truck air brake system diagram.

And function of an air brake system. The system must be pressurized with air before the brakes will release at rest the brakes remain engaged. Before condemning the air brake system on a. An air brake or more formally a compressed air brake system is a type of friction brake for vehicles in which compressed air pressing on a piston is used to apply the pressure to the brake pad needed to stop the vehicle.

As the brakes are applied air pressure decreases as the amount of air decreases the valve allows air back into the reservoir tanks while the brakes move to the applied position. The air brake system of a trailer is entirely dependent upon the air brake system of the towing vehicle for its air supply and control. Typical 6 wheel air brake system. Typical tractor system with esp stability foldout back.

Typical truck system schematic foldin back. Heavy duty truck parts distributor specializing in aftermarket parts for the owner operator. Otherwise it will be impossible to obtain a good brake performance on the trailer. Finally it uses the energy of air pressure and changes it into mechanical force.

These diagrams are provided for basic identification only. In addition it must direct that air s flow. Therefore the air air brake system of the towing vehicle must be in good condition. Always consult a professional technician to properly troubleshoot your system.

Many of the newer brake valves provide multiple functions within the same valve body. Typical truck system with esp stability this ninesection handbook provides an introduction to the use and operation of bendix air brake systems and devices. Air brakes are used in large heavy vehicles particularly those having multiple trailers which must be linked into the brake system such as trucks buses trailers and. A truck s air brake system is really made up of three different brake systems.

Parts of an air brake diagram the design of any air brake valve is more easily understood by recognizing some major components and parts. First it keeps up a steady supply of compressed air. Piston the piston is the heart of the control valve. Basic air brake system schematics.

Note not all valves have all the components shown and described in this booklet. Once the system reaches its operating pressure the brakes are freed and ready to use. This diagram provided by bendix demonstrates a typical tractor air brake system without anti lock brakes and without traction control features. A more detailed look at the air braking system in particular with this video at the air brake relay.

Relays are fitted to an air braking system for larger v. Components are introduced and shown with typical system diagrams to show where.