Posted by mkirsch on October 13, 2008 at 06:38:48 from (64.80.108.53):
In Reply to: SuperMTA problem posted by HicksDale on October 12, 2008 at 18:44:38:
rustred is correct. Ground doesn't matter for the starter. It will run in the correct direction whether you have positive ground or negative ground.
If this tractor was converted with an alternator, it is definitely negative ground.
On a generator, it doesn't matter. You can polarize the generator to work either way. If you get it wrong, it simply won't charge until you repolarize, and the Amp meter will read backwards.
Oooh, there's a good way to check: Connect the battery and turn on the ignition. Watch which way the meter moves. If it moves left, you got it correct. Left indicates a discharge, and it should show a discharge with the ignition on.
Of course, that is assuming everything was wired correctly before you put the tractor in storage.
Anyway, the problem is with the starter, not which battery terminal is connected to the tractor's frame.
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