equeen there are some vehicles (I say vehicle because some autos (Chrysler) are positive ground) that use a positive ground. Whom ever is doing your generator should be able to tell you if it is a positive or negative ground. If you have a positive ground system in your tractor and you hook it up as a negative ground it will fry your generator. And possibly some other systems, i.e. starter, amp gauge it can even melt wires.
Re: 12 v positive or negative ground in reply to dschrum, 03-22-2013 16:19:21
You posted some bum info that will confuse.reverse polarity will not fry your generator, ammeter,amp gauge.Starter turns the same way, pos or neg.1/2 the vehicles built in 1940 were positive ground.All 6V tractors Ive worked on were pos ground.Reversing polarity on an alternator will damage it.
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