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Re: 4020 12v/24v system
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Posted by Dan-IA on October 18, 2006 at 21:07:55 from (66.43.223.231):
In Reply to: 4020 12v/24v system posted by nickg on October 18, 2006 at 20:14:36:
Well I'm not much for the green paint, but usually about everything is negative-ground. I doubt you've got a 24v system; I've never heard of it anyway. Usually the batteries are in parallel (+ to +, - to -) to keep the voltage the same and raise (double) the current. Of course, the older John Deeres (I have an A like this, anyway) were positive-ground. So I can't give a straight answer here. But I suspect in the later models that they would've changed to the more common negative-ground configuration. Could it be a starter problem? Well, I have an IH 756 with similar behavior. I'm told it could be either bad brushes or a solenoid problem. So, yes, it can be a starter problem. Or it could be a wiring problem. I've seen that a few times, particularly with tractors with a more than a few years on 'em. I like to replace the wiring on my tractors once they start acting up like this. Just a few thoughts, from one of the 'newbies' on this board. :)
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