John Deere 4020 12 Volt Wiring Diagram

I am going to start off this instructable with a story on why i am doing this instructable. John deere sells a conversion kit that is very complete.

Http I602photobucketcom Albums Tingdiagramjpg Wiring Diagram General

Got kit from john deere starter sylonoid the whole works.

John deere 4020 12 volt wiring diagram. Have you seen or does anyone produce a true electrical schematic for the 4020 middle serial s. The generator has a negative and positive output to the corresponding battery. The alternator will be in the next step.

We purchased a model 70 diesel with pony start. John deere 24 volt electrical systems on electric start 70 720 730 820 and 830 diesels. Replaced all wiring harnesses.

John deere 4010 diesel wiring diagrams log in to. While attempting another project and instructable on this tractor i ran into a bit of an issue will be published later. The older 4020 diesel tractors had a strange 12 volt system.

The schematic that includes all the wiring circuits with wire color designations without the drawings of the wires all going into the harness like the it manual or john deeres factory drawing. John deere 4020 24 to 12 volt conversion in reply to heath72 04 11 2010 082748 the fuel gauge may or may not need changed mine did not after the conversion it worked before and after. You need to find a early wiring diagram and check the wiring.

The tractor would no longer start. The 24 volt wiring harness will work with little modification. We finally get to start wiring everything up in this step.

Conveted 4020 from 24 to 12 volt system. It was 12 12. We wire the secondary solenoid and the starter up.

Dads of course now needs a differant gauge. You simply connect the heavy 24 v pos and neg wires at the starter to the 12 v pos battery connection at the starter solenoidat the alternator you connect the 24 v pos and neg generator regulator wires together to the bat. Posted 12182016 1317 5706737 in reply to 5706213 subject.

Make sure to check the instructable for. If someone changed a wire or a switch it could cause bad things to happen. 4020 wiring diagram check too to see if it is set up 24volt or 12 volt off batteries 24 i think the starter wiring is insulated from the rest of the system with a wire coming off the middle of the two twelve volt batteries to power it.

The john deere 24 volt electrical system explained. We had to overhaul the main diesel engine and decided to put an electrical start on the tractor at that time. Tractor wont start with the switch and you have to jump the auxilli read more.

A bit of a background to this info. John deere 3020 24v to 12v conversion.

Starting Wiring Diagram Data Wiring Diagram