## John Deere Combine Service Manual (Models S550-S690 STS)

This comprehensive service manual provides detailed information and instructions for operating, maintaining, diagnosing, and repairing John Deere S550, S660, S670, S680, S685, and S690 STS combines.

**Key Features:**

* **High-quality images and diagrams** for clear understanding of each system.
* **Easy-to-follow instructions** to effectively troubleshoot any issue.
* **Searchable text and bookmarks** for quick reference and convenient navigation.
* **Printable format** for easy use in the field.

**Contents:**

* **General Information:** Safety procedures, combine and component identification, and general specifications.
* **Troubleshooting:** Diagnostic trouble codes, observable symptoms, and solutions.
* **Engine System:** Theory of operation, schematics, and diagnostics.
* **Electrical System:** General information, theory of operation, schematics, and diagnostics.
* **Drives and Hydraulics:** Comprehensive coverage for all models, including preliminary checks, hydraulic specifications, theory of operation, schematics, diagnostics, and components.
* **Main Gearcase:** Preliminary checks, hydraulic specifications, theory of operation, schematics, diagnostics, and components.
* **Cab/Open Operators Station:** Specifications, theory of operation, schematics, diagnostics, and components.

**This manual is an essential tool for mechanics, technicians, and farm owners who want to maintain and repair their John Deere combine efficiently and effectively. Order your copy today!**