4020 wiring diagram

[Kabby]

Anyone have or know where I can get a wiring diagram for a 1966 4020 John Deere?

 

[Kabby]

I NEED A WIRING DIAGRAM FOR A 1966 4020 DEISEL JOHN DEERE S/N140615 24 VOLT SYSTEM

 

[Anonymous-0]

Parts book. JD parts counter can print it off in seconds. Otherwise the shop manual.

Gerald J.

 

[Bob]

The one in the shop manual isn't worth a DARN. To see for yourself, look it up on jdparts.com.

A helpful service manager can copy a REAL diagram off, though.

 

[Anonymous-0]

What's going on with your electrical system?
We have two 4020's it can be a monster!
Maybe someone can help?

 

[Anonymous-0]

I have the correct shop manual and parts book in vintage print versions and I find the wiring diagrams very good. Its important to match the tractor and the wiring diagram, else it all stinks.

Gerald J.

 

[Bob]

I have the vintage parts books, as well, and they're sure no substitute for the SHOP manual!

 

[Kabby]

(quoted from post at 07:42:06 09/28/07) I have the correct shop manual and parts book in vintage print versions and I find the wiring diagrams very good. Its important to match the tractor and the wiring diagram, else it all stinks.

Gerald J.

Gerald is there any way i could get a copy of the wiring diagram form you.
It would help me out a great deal.

 

[Kabby]

(quoted from post at 03:32:50 09/28/07) What's going on with your electrical system?
We have two 4020's it can be a monster!
Maybe someone can help?

I just bought it and was trouble shooting the oil pressure light and when I opened up the panel to check wiring. I saw that some one had done some re wiring and splicing and wires cut. I am not getting any power to the oil pressure light or fuel gauge and the generator is inop. So I think I need to start from square one with a wiring diagram and re wire it.

 

[Bob]

gwece's 4010 diagram linked there is quite similar to a 24-Volt 4020, UNLESS your's has an alternator.
4010 diagrams