Air brakes are one of the most crucial—and most commonly failed—sections of the CDL exam. Learning their components, safety checks, and braking techniques can make the difference between passing and ...

Last year’s Commercial Vehicle Safety Alliance’s (CVSA) International Roadcheck took over 2,000 trucks off the road because of light issues. Brake lamp failures, a common problem that’s easy for ...

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 ...

Brake Safety Week is coming up soon, and the entire North American commercial vehicle industry knows it—so there’s no reason not to be ready. Still, last year’s Commercial Vehicle Safety Alliance ...

Air brakes have a long history of reliable performance in the medium- and heavy-duty truck markets, yet these systems cannot be ignored without costly consequences. A good inspection process and ...

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 ...

Air disc brakes require minimal routine maintenance. Most of the moving parts are internal. Brake pads will often last for the first life of a tractor. Photos: Jim Park Better stopping power is ...

Many of the larger vehicles on our roads have one intriguing thing in common: They can make sudden, loud, gas-escaping hissing noises. These noises, admittedly, have made this writer jump — on more ...

If you're like most people, you're usually aware of only one part of your brake system: the brake pedal. You're so familiar with it, in fact, that you can probably tell if something's different just ...