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John Deere Tractors Discussion Forum
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Re: Generator still won't charge!

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John T PS

02-12-2013 05:36:13

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You ask about turning different directions????

If you reverse the fields magnetic polarity (N becomes S and S becomes N) it will turn opposite direction.......

A reverse direction of current flow changes magnetic polarity.........

Even with no field current flow (like if field isnt grounded) THE GENNY IF MOTORED CAN RUN due to the small strength RESIDUAL PERMANENT MAGNETISM in the soft iron field poles........

If the residual permanent magnetism is at opposite magnetic (N/S) polarity then the magnetic polarity of the current created electromagnetic field THAT COULD EXPLIAN DIFFERENT DIRECTION OF SPIN

HOWEVER once current is passed thru the fileds (if grounded) that would change the resisdual magnetism back to match the electromagnetic fields polarity and correct any opposite spin direction iffffffffffffffffffffff current indeed passed through BOTH fields in the correct direction for each provided they are wired right and in right orientation etc!!!!!!!

Soooooooo somwehere in the above theory coupled with the fields arent wired right or reversed or dis oriented (in mechanical mounting) and as this thread develops and you give us more info and if all else is okay??? (including diodes in right direction???)

I AGAIN SUSPECT THE GENNY and tend to agree with Teddy theres a field problem (wrong ones or mis wired or reversed or soemthing???)

Let us know

AGAIN this assumes alllllllll else is correct??? John T

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02-12-2013 17:48:33

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 Re: Generator still won't charge! in reply to John T PS, 02-12-2013 05:36:13  
Just in case y'all missed it. I did mention that the generator actually did work on the tractor before I took it to be rebuilt just very weak.

When I find out something ill let y'all know.

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