Getting a valve out of a vehicle isn’t too hard – it’s putting the new one in that requires more care. A typical commercial vehicle air braking system requires, at minimum, around a dozen core ...

It’s impossible to fix something without understanding how it’s supposed to work. Brake system repair decisions can be difficult to make, and costly to execute, without a basic understanding of system ...

As spring arrives across North America, it’s important to take preventive maintenance steps and address the tolls that a season of wild temperature swings and corrosive road chemicals can take on your ...

When the brake pedal is pressed, the exhaust passage will be closed and the air intake passage opens and compressed air goes back to the chamber. During the return stroke, the exhaust passage opens ...

When the brakes are applied, circuits send compressed air from the storage tanks to front and rear service chambers that push the brake shoes into the brake drums, thus slowing down the vehicle. Semis ...