System maintenance Air systems require little regular maintenance but slacking off on even that can lead to freeze-up in winter. Wabco advises checking the exhaust from the air dryer on a weekly basis ...

This emulsion can clog and corrode brake system valves and air lines, which can lead to expensive maintenance and perhaps a serious brake system problem.

A faulty air compressor unloader valve can cause the compressor to stall out, but replacement valves are readily available ...