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6 volt Negative Ground?

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farmalllove
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6 volt Negative Ground?

Postby farmalllove » Thu Aug 08, 2019 9:51 pm

I've had my Cub just over one year now and this is something I have always found quite odd. After bringing the tractor home and running it a month or two, I had to replace the battery. This is when I first noticed the battery was a 6 volt but was wired negative to chassis/ ground. The positive terminal, connected to the long cable, was connected to the starter. I also have a Super A so I was familiar with 6 volt and had never seen or heard of a 6 volt negative ground system. Any input on what might be going on? I installed the new battery the same way and it started and ran just fine, the lights work great and really not too much to complain about. However, the battery does not seem to charge, and drains easily. I find myself charging it every other week from about three months after it was new. Additionally, the tractor seems to start very slow. I guess I am asking what I should do. Should I put in a 12 volt battery? Should I try to flip the cables and try it 6 volt positive ground? I haven't done anything yet because I don't want to burn anything up, and it works, mediocrely, as it is.
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Bill V in Md
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Re: 6 volt Negative Ground?

Postby Bill V in Md » Thu Aug 08, 2019 10:09 pm

Bill VanHooser
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Barnyard
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Re: 6 volt Negative Ground?

Postby Barnyard » Thu Aug 08, 2019 10:26 pm

Keep it six volt for now and reverse your cables to make it positive ground. Re-polarize the charging system and see if it starts charging.
There are two ways to get enough Cubs. One is to continue to accumulate more and more. The other is to desire less.

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farmalllove
5+ Years
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Posts: 29
Joined: Fri Jul 20, 2018 7:10 pm
Zip Code: 16137
Tractors Owned: 1957 Farmall Cub with plow, snow plow, and belly mower
1952 Farmall Cub with international plow, snow plow, cultivators, and mower.
1953 Farmall Super A with hydraulic lift, flat belt Buzz-Saw, Snow plow, bucket, and cultivators.

Re: 6 volt Negative Ground?

Postby farmalllove » Thu Aug 08, 2019 10:44 pm

Barnyard wrote: Re-polarize the charging system and see if it starts charging.

How would I go about doing this?
Successful people don't have fewer problems. They have determined that nothing will stop them from going forward.
-Benjamin Carson-

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Re: 6 volt Negative Ground?

Postby Nelson 634 » Thu Aug 08, 2019 10:58 pm

Do a search for re-polarizing generator. Top right hand side of this page. Search window.
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2 Farmall 404's
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Re: 6 volt Negative Ground?

Postby Barnyard » Thu Aug 08, 2019 11:03 pm

farmalllove wrote:
Barnyard wrote: Re-polarize the charging system and see if it starts charging.

How would I go about doing this?

Take a short jumper wire and touch it to the "Batt" and "Gen" terminals on the voltage regulator. You should see a slight spark. The spark indicates that the process is completed.
There are two ways to get enough Cubs. One is to continue to accumulate more and more. The other is to desire less.

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User avatar
farmalllove
5+ Years
5+ Years
Posts: 29
Joined: Fri Jul 20, 2018 7:10 pm
Zip Code: 16137
Tractors Owned: 1957 Farmall Cub with plow, snow plow, and belly mower
1952 Farmall Cub with international plow, snow plow, cultivators, and mower.
1953 Farmall Super A with hydraulic lift, flat belt Buzz-Saw, Snow plow, bucket, and cultivators.

Re: 6 volt Negative Ground?

Postby farmalllove » Fri Aug 09, 2019 6:49 pm

Alright I flipped the cables so that they are the proper way. Additionally, I re-polarized the generator, and tested it and it is in fact charging. Thanks so much for everyone's help.
Grant Haggard
Successful people don't have fewer problems. They have determined that nothing will stop them from going forward.
-Benjamin Carson-


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