John Deere B light switch/harness

pmarkel · Aug 10, 2015

I have a 1948 John Deere for which I am attempting to restore normal light function. I thought I would modernize the light switch to one with a fuse. The tractor has a 12 volt system with a voltage regulator. Is there a particular light switch I should be looking for or will any universal one do the trick? Thank you for your time.

Sincerely,

Peter Markel

Pete in MD · Aug 10, 2015

Any "pull on - push off" switch that fits the hole in the dash will work. You can add a fuse holder in the wire after the switch.

pmarkel · Aug 10, 2015

Thank you. Will a 2 position push/pull work?

James Howell · Aug 10, 2015

"<font color="#6699ff">[b:654c4848f0][i:654c4848f0]Is there a particular light switch I should be looking for or will any universal one do the trick?[/i:654c4848f0][/b:654c4848f0]</font>"

Take a look at the diagram below.

Note the [b:654c4848f0][i:654c4848f0]BLACK CONNECT TO REGULATOR TERMINAL "L" & LIGHT SWITCH[/i:654c4848f0][/b:654c4848f0].

Take a look at the photo below.

You might consider using a "universal" light switch and installing an inline amp fuse on the black connection lead.

Hope this helps.

pmarkel · Aug 10, 2015

Thank you that does help. I will study the generator on the tractor tomorrow and compare it to your diagram.

Pete in MD · Aug 11, 2015

John Deere B light switch/harness

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