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John Deere Tractors Discussion Forum
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1949 JD Model A Wiring

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ol' guy

07-19-2006 09:03:18




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Having recently completed painting the tractor, I'm now in the process of re-assembling every thing. The wiring hook-ups are a special problem, as I am not an electrical expert. I have the Deere wiring diagram, but it is very "broad brush" and doesn't tell you which terminal (ammeter, switch. lights, etc.) to put which wire.
Specific questions: On the push-pull switch, what goes on the respective terminals of the swith?? How do you connect the voltage regulator with the generator?? Is there a more specific and detailed diagram or set of directions available?? Thanks for the help

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Glen in TX

07-19-2006 13:09:34




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 Re: 1949 JD Model A Wiring in reply to ol' guy, 07-19-2006 09:03:18  
Do you just have the wiring harness pic from parts manual?? The SM2029 and service bulletins show 3 or 4 different A wiring digrams in more detail. Two versions for 6V with generator cut out relay and one for A 584000 and up showing the 4 post regulator with L terminal. The L terminal off regulator goes to one side of light switch and another wire from that terminal goes also to the ignition switch with other side of ignition switch going to the distributor coil. If you don't have those diagrams email me later.

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ol' guy

07-19-2006 14:22:45




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 Re: 1949 JD Model A Wiring in reply to Glen in TX, 07-19-2006 13:09:34  
Thanks much for the help. I do not have the service manual, but I do have the parts book, and neglected to check there. "Too soon old, and too late smart". Thanks again!



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