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Massey Harris & Massey Ferguson Tractors Discussion Forum
:

positive or negative ground

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mike

07-25-2004 06:39:54




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I have a Massey Harris 30, bought new 6 volt battery , I can not remember if it was positive or negative ground, any help is appreciated,tractor has original generator and wiring, thank you for replies




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Ken

07-25-2004 12:44:21




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 Re: positive or negative ground in reply to mike, 07-25-2004 06:39:54  
I have a Massey Harris 30 also. It is positive
ground. Yours will be to.



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txblu

07-25-2004 06:50:39




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 Re: positive or negative ground in reply to mike, 07-25-2004 06:39:54  
Look on the ignition coil. If - goes to the dist, it is neg. Otherwise pos. As I recall lots of 6v systems were +. Wasn't till the 12v transistor radio [per Dell (WA)n board] in automobiles did industry go neg.

Mark



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Alberta Mike

07-26-2004 10:04:26




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 Re: Re: positive or negative ground in reply to txblu, 07-25-2004 06:50:39  
I think your tip is good if you know for sure the tractor ignition system is wired properly. The coil will work even hooked up in reverse so I don't think a guy can tell for sure that way. When you hit the starter button, the ammeter should show a discharge. If it shows charge, then the battery is hooked up wrong.



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