12v generator

Indiana George · Aug 1, 2015

I bought a 12 volt generator at a farm auction,
is there a way to test it to see if it runs?

Hugh McKinney · Aug 1, 2015

If it charges? Generators are tricky, the have to be polarized for whether you are gonna hook your battery up positive or negative ground. Honestly, I would take it to shop to have them test it, and while there, I'd have them polarize it. What are you gonna put it on? That will basically determine whether to polarize it for positive or negative ground.

Indiana George · Aug 2, 2015

I am going to use it on a john deere a

John T · Aug 2, 2015

It easy to bench Motor Test it, see my Motor Test Paragraph,. Usually (NOT always) if it passes BOTH Motor Tests it will charge. Polarize it BEFORE start up on a tractor.

NOTE my test is ONLY for Class A Generators.

John T
John Ts Troubleshooting

Indiana George · Aug 2, 2015

John T, this might be a stupid question,but what is a class
A generator?

Indiana George · Aug 2, 2015

John T this might be a stupid question,but what
is a class A generator?

Jim Guarino Agri-Services · Aug 4, 2015

If John T did not already answer your question, an "A" circuit generator has the field circuit grounded outside of the generator. Most Delco and Autolite generators are of the "A" circuit design.
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12v generator

Indiana George

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