Electrical Information

Here are some articles that may help you out if you are having electrical problems.

Third-Brush Generators - Describes the workings of a third-brush generator and how the general electrical circuits work.

Two-Brush Generators - The same as above, only with two-brush generators.

Tractor Generators - A detailed look at specifically how a generator works.

Twelve-Volt Conversions - Discusses the general procedure for converting a 6-volt electrical system to a 12-volt system. This article should also help you if that 12-volt conversion has not been working properly.

Step by Step 12-Volt Conversion - Details the process of converting a Farmall M or Super M to 12-volt. Will also apply to many other tractors.

Electrical Conversion Kits - Some products for converting that point-and-condensor ignition system to solid-state electronics.

Genesee Products - Products for converting that point-and-condensor ignition system to solid-state electronics.

Model 40 Wiring Diagram - If you need wiring diagrams for other antique John Deere tractors, you can obtain an electrical manual from Deere by contacting the John Deere Service Publications Department.

Voltage Regulator / Cut-out Relay Diagram - From John Deere Manual SM-2000 "Tractors and Engines (General) - Electrical Equipment" dated June 1952

If you come across any other interesting and useful tidbits that would be helpful to share with others, let me know!