This manual provides essential diagnostic and troubleshooting information for John Deere S540, S550, S660, S670, S680, and S690 combines, covering serial numbers from 000001-120099. These combines are engineered for robust performance and reliability in agricultural operations. This diagnostic manual is designed to help users understand the intricate systems of these machines, ensuring efficient operation and timely problem resolution.
The scope of this manual is focused on diagnostic procedures, offering clear explanations of system operations, comprehensive schematics, and step-by-step troubleshooting guides. It covers key areas including general information, diagnostic trouble codes, engine, air intake and cooling, electrical systems, drives, steering and brakes, hydraulic systems, main gearcase, and the operator station. This resource is invaluable for owners, mechanics, and technicians seeking to accurately identify and resolve issues with their John Deere combines.
## John Deere Combine Service Manual: S540, S550, S660, S670, S680, and S690
This comprehensive service manual is your essential guide for diagnosing, troubleshooting, and repairing your John Deere Combine. Packed with detailed information and high-quality illustrations, it empowers you to confidently tackle any maintenance or repair challenge.
**This manual features:**
* **Clear and detailed explanations** of each system's operation, ensuring you understand the mechanics behind the machine.
* **Comprehensive schematics** that visually guide you through wiring diagrams and component layouts.
* **Step-by-step diagnostic procedures** to quickly pinpoint the source of any problems, saving you time and frustration.
* **Printable format** for easy access and reference both at home and in the field.
* **Searchable text and bookmarks** for effortless navigation throughout the manual's extensive content.
* **Complete coverage for models S540, S550, S660, S670, S680, and S690 (S.N: 000001-120099).**
**This is a diagnostic manual. Repair manuals are sold separately.**
**Key Topics Covered:**
* **General Information:** Safety, Combine Identification, Specifications
* **Diagnostic Trouble Codes:** Accessing Codes, Troubleshooting Specific Systems
* **Engine System:** Theory of Operation, Diagnostics
* **Air Intake and Cooling System:** Theory of Operation, Diagnostics
* **Electrical System:** Theory of Operation, Schematics, Diagnostics
* **Electrical Control Units:** Accessing Diagnostic Codes, Theory of Operation, Schematics, Diagnostics
* **Drives (S540, S550, S660, S670):** Preliminary Checks, Hydraulic Specifications, Theory of Operation, Schematics, Diagnostics
* **Drives (S680 and S690):** Preliminary Checks, Hydraulic Specifications, Theory of Operation, Schematics, Diagnostics
* **Steering and Brakes (S540, S550, S660, S670):** Preliminary Checks, Hydraulic Specifications, Theory of Operation, Schematics, Diagnostics
* **Steering and Brakes (S680 and S690):** Preliminary Checks, Hydraulic Specifications, Theory of Operation, Schematics, Diagnostics
* **Hydraulic System:** Theory of Operation, Schematics, Diagnostics, Key Reference Points, Component Details
* **Main Gearcase:** Preliminary Checks, Hydraulic Specifications, Theory of Operation, Schematics, Diagnostics, Key Reference Points, Component Details
* **Cab/Operator Station:** Specifications, Theory of Operation, Schematics, Diagnostics, Component Details
**Order your copy today and unlock the full potential of your John Deere Combine!**
## John Deere Combine Service Manual: S540, S550, S660, S670, S680, and S690
This comprehensive service manual is your essential guide for diagnosing, troubleshooting, and repairing your John Deere Combine. Packed with detailed information and high-quality illustrations, it empowers you to confidently tackle any maintenance or repair challenge.
**This manual features:**
* **Clear and detailed explanations** of each system's operation, ensuring you understand the mechanics behind the machine.
* **Comprehensive schematics** that visually guide you through wiring diagrams and component layouts.
* **Step-by-step diagnostic procedures** to quickly pinpoint the source of any problems, saving you time and frustration.
* **Printable format** for easy access and reference both at home and in the field.
* **Searchable text and bookmarks** for effortless navigation throughout the manual's extensive content.
* **Complete coverage for models S540, S550, S660, S670, S680, and S690 (S.N: 000001-120099).**
**This is a diagnostic manual. Repair manuals are sold separately.**
**Key Topics Covered:**
* **General Information:** Safety, Combine Identification, Specifications
* **Diagnostic Trouble Codes:** Accessing Codes, Troubleshooting Specific Systems
* **Engine System:** Theory of Operation, Diagnostics
* **Air Intake and Cooling System:** Theory of Operation, Diagnostics
* **Electrical System:** Theory of Operation, Schematics, Diagnostics
* **Electrical Control Units:** Accessing Diagnostic Codes, Theory of Operation, Schematics, Diagnostics
* **Drives (S540, S550, S660, S670):** Preliminary Checks, Hydraulic Specifications, Theory of Operation, Schematics, Diagnostics
* **Drives (S680 and S690):** Preliminary Checks, Hydraulic Specifications, Theory of Operation, Schematics, Diagnostics
* **Steering and Brakes (S540, S550, S660, S670):** Preliminary Checks, Hydraulic Specifications, Theory of Operation, Schematics, Diagnostics
* **Steering and Brakes (S680 and S690):** Preliminary Checks, Hydraulic Specifications, Theory of Operation, Schematics, Diagnostics
* **Hydraulic System:** Theory of Operation, Schematics, Diagnostics, Key Reference Points, Component Details
* **Main Gearcase:** Preliminary Checks, Hydraulic Specifications, Theory of Operation, Schematics, Diagnostics, Key Reference Points, Component Details
* **Cab/Operator Station:** Specifications, Theory of Operation, Schematics, Diagnostics, Component Details
**Order your copy today and unlock the full potential of your John Deere Combine!**
