Cummins Service Manual PDF

An OEM Cummins factory service manual is the only real choice. Even though a free Cummins manual is helpful, it is merely the operators maintenance manual. Those are designed for becoming familiar with the operation and minor maintenance of your machine. But, the authentic Cummins service manual we have is a must-have item for the do-it-yourself mechanic and the professional. The Cummins repair manual provides detailed instruction on the major repair components of your equipment.  Illustrated diagrams are included in the service manuals. Diagnostic, test, adjustment, theory of operation, and repair information are also covered in the service manual.