What is the function of the brake chambers in an air brake system?

The brake chambers in an air brake system play a crucial role by converting air pressure into mechanical force to apply the brakes. In essence, when the driver presses the brake pedal, compressed air is sent to the brake chambers. This air pressure pushes a diaphragm or piston inside the chamber, causing it to move. This movement is what activates the brake shoes, which in turn apply friction to the brake drums or discs, effectively slowing down or stopping the vehicle.

Understanding the role of brake chambers is essential for safe operation, as they are a key component in the air braking mechanism that allows for effective braking control in larger vehicles, such as trucks and buses.