Products Includes Color Air Brake Diagrams

August 2008, - Feature

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Mitchell 1 has added color air brake diagrams to, its comprehensive Web-based truck repair manual system.

The pneumatic diagrams will include the same widely-used features as the electrical wiring diagrams. In addition, the line colors were designed to conform to TMC's Recommended Practice RP 423.

Crisp and readable at any zoom level, each diagram mirrors the colors of the pneumatic brake lines on the truck, and using Mitchell 1's CircuitSelect feature, a technician can highlight the brake line he's working on so he can focus his attention where it's needed to quickly and accurately diagnose the problem and make the required repair. For consistency, each air brake diagram is oriented the same, regardless of manufacturer, with the front brake chambers appearing at the top and the rear brake chambers at the bottom. From make to make, the components such as the compressor, service brake chambers, spring brakes, relays, and valves are easily identifiable with consistent icons.

Another feature to assist technicians in finding the problem is the searchable text included in the diagrams; this allows him to key in nomenclature that will take him directly to the probable location on the diagram. includes detailed procedural information, color photos, diagnostics and wiring/pneumatic diagrams for most trucks built during the last decade and a half. Information is updated monthly and is available to subscribers 24/7.

More info:


  1. 1. greg bacon [ February 11, 2013 @ 11:57PM ]

    I have a 1984 kw day cab/over long frame twin screw that had a box mounted on the frame. customer wants to put fith wheel on and use as a tractor. truck has only 1 button in cab with no trolley brake. what would this constist in doing to make this a tractor? I think I need some sort of diagram and a time frame to tell customer what we are up against.


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