[diginahole]

A lot of newer air brakes have automatic slack adjusters. Regardless you are required to verify adjustment daily on your inspection report.

I have to disagree with comments about air brakes being faster or better than hydraulic. It simply just cannot be true. Hydraulic brakes are both faster and stronger as well as being less prone to brake fade. Simple high school physics teaches us that air can be compressed and liquids cannot. It is my belief that air brakes are commonplace in commercial vehicles is for the ease and reliability of coupling trailers.