Cummins B Series Engines Troubleshooting and Repair Manual
This B3.9 and B5.9 Troubleshooting and Repair Manual is intended to aid in determining the cause of engine-related problems and to provide recommended repair procedures. The manual is divided into sections by system. Each section provides general information, specifications, diagrams, and service tools, where applicable. The specific repair procedures are referenced in the Troubleshooting Symptom Charts.
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