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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

Brake fade is a thing of the past with air disc brakes. On repeated hard stops and on long descents, brake performance improves as operating temperatures increase. Our first tango with disc brakes ...

One of the most important things going on with that hooptie of yours happens in between its brake pads and its rotors. It's there where a specific amount of friction determines whether or not you'll ...