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Case Tractors Discussion Forum

Is my case 440 a positive ground?

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Author  [Modern View]

01-24-2015 14:18:01

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I have a 1962 gas 440 tractor that I am trying to fix..according to what I read this tractor was originally a positive grounded system. The generator that is on it looks to be the original as it has the tachometer gear on it...2 questions...how can I tell if the tractor is positive or negative grounded AND how can I tell if it is a 12 volt or 6 volt system? Thanks!!

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01-25-2015 05:08:34

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 Re: Is my case 440 a positive ground? in reply to Gene Dotson, 01-24-2015 18:39:01  
Gene, I have read the Racine and rock island distinction before but my it book differentiates positive and negative grounds by serial #'s not production sites....I just don't want to mess anything up...so I wonder which is it that determines positive from negative....production site or serial #??

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01-24-2015 19:02:48

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 Re: Is my case 440 a positive ground? in reply to Gene Dotson, 01-24-2015 18:39:01  
Mine is a Racine model with a 800 serial #

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01-24-2015 18:58:31

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 Re: Is my case 440 a positive ground? in reply to Gene Dotson, 01-24-2015 18:39:01  
Very good info! Thanks!

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chuck machinist

01-24-2015 15:41:14

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 Re: Is my case 440 a positive ground? in reply to jsteedley, 01-24-2015 14:18:01  
Welcome to the Case forum. I am not well versed with the 440,although I would like to own one. I did a quick check on Tractor Data.com and selected {Case} then clicked on 440. There is a Nebraska test#744 on PDF that gives you a lot of great information on that tractor .She is a 12 volt system . Do not hesitate to join in the forum and ask more,or share your experience with your tractor.Good luck .Chuck

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01-24-2015 19:01:06

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 Re: Is my case 440 a positive ground? in reply to chuck machinist, 01-24-2015 15:41:14  
Thanks for the info!!

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