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 ...

The brake system is designed to reduce speed and stop the vehicle. It also helps keep the car still when the engine is not working. This system requires regular service, which includes the “bleeding” ...

There's no more satisfying feeling for a truck driver than the airbrake knob smacking the palm of your hand at the end of a grueling haul, hearing that "pshhh" of the air system and knowing that ...