This comprehensive technical manual provides in-depth information on the operation and testing of John Deere 6205 and 6505 tractors. It helps you diagnose and repair common failures quickly and efficiently. The manual contains detailed specifications, diagrams, and real-life photographic illustrations, including color schemes. It covers all aspects of the tractor, including:

* **Safety Measures:** A thorough section outlining safety procedures for working on and around the tractor.
* **Engine:** This section includes comprehensive dynamometer tests, providing insight into engine performance.
* **Fuel, Air Intake, and Cooling Systems:** This detailed section covers system diagnosis, tests, adjustments, fuel system components, air intake system components, cooling system, and cold-weather starting aids.
* **Electrical System:** The electrical system section offers general information, functional schematics, wiring harnesses, sub-system diagnostics, and component testing.
* **SyncroPlus Transmission:** This section covers operational checkout, troubleshooting, system tests, transmission operation, Perma Clutch II, gear transmission, and range transmission.
* **Power Reverser:** This section covers operational checkout, troubleshooting, system tests, power reverser operation, power reverser module, and gear transmission.
* **Drive Systems (except transmission):** This section covers operational checkout, troubleshooting, system tests, front wheel drive clutch, differential, final drives, and rear PTO options.
* **Steering and Brakes:** This section covers operational checks, troubleshooting, system tests, hydrostatic steering, hydraulic brakes, handbrake, and hydraulic trailer brake.
* **Hydraulic System:** This section covers operational checkout, troubleshooting, system tests, hydraulic system components, hydraulic pump, valves, oil cooler and filters, rockshaft, and selective control valves and couplers.
* **Special Tools (Dealer-Fabricated):** A detailed section outlining special tools used by dealers.
* **Index:** A comprehensive index for easy navigation.

This manual offers a wealth of information to assist you in successfully diagnosing, repairing, and maintaining your John Deere 6205 and 6505 tractors.