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A complete infograph showing the complete in-cab air brake pre-trip inspection that you must do to earn your CDL license.

On older air brake systems, the driver must drain the wet tank to ensure the division of the system into two independent sub-systems.

In-Cab CDL Air Brake Checklist This checklist will ensure that you know the numbers and pass your CDL Air Brake In-Cab Pretrip Inspection first time!

* FEAR :: Correct procedures for the MUST-DO IN-CAB CDL AIR BRAKE INSPECTION;

* SELF-CONFIDENCE :: Detailed sample test shows you how the tests are completed step-by-step;

* EMPOWERMENT :: Easy to use guide cuts through all the rigamarole of CDL manuals.