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Discussion Forum
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Re: D-17 electical ?

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steve

06-11-2002 19:26:14




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the D17 was a 12 volt system with a positive ground battery. There is a generator on the front side of the engine, with a voltage regulator (little square black box). The first thing you need to know is if the generator is charging the battery, or if the battery is bad. If the generator is 40 years old, it might be time for internal cleaning and brushes. That would be a good place to start. You should take the generator to NAPA and have it tested, or you can do it. ground the "F" terminal on the generator, start tractor and measure the voltage between the A and F terminals and you should get about 14 volts with the engine on and 12 volts when off (battery voltage). this is the place to start.

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John

06-11-2002 20:16:28




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 Re: Re: D-17 electical ? in reply to steve, 06-11-2002 19:26:14  
Do all d-17 have a possitive ground battery? When I bought it, it had a negative ground battery. So when i but a new battery in it i stayed with that.
Could that be my problem? because right now it is a negative ground on it.
I will try tomorrow and see if it starts the tractor.
Thanks
John



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steve

06-12-2002 19:47:02




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 Re: Re: Re: D-17 electical ? in reply to John, 06-11-2002 20:16:28  
they were all positive ground in the beginning. many have been changed over, not a big problem, but the generator regulator was made for a positive ground syste. this might be your problem. might have to get a different regulator. i would take the generator to NAPA and have it checked, regulator also.



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