Battery hooked up wrong on positive ground tractor

Andrew350 · Jun 8, 2022

I have a 1957 Case 350 and it is a positive ground tractor. It was pulled out of the shed and driven maybe 100 feet when I was not there and the battery was hooked up with the positive going to the starter. Now when ever I go to put the battery cables on it sparks and it never did before. Could there be something wrong or should I not worry about it?

Thanks in advance for any information

Andrew

JMOR · Jun 8, 2022

(quoted from post at 13:45:53 06/08/22) I have a 1957 Case 350 and it is a positive ground tractor. It was pulled out of the shed and driven maybe 100 feet when I was not there and the battery was hooked up with the positive going to the starter. Now when ever I go to put the battery cables on it sparks and it never did before. Could there be something wrong or should I not worry about it?

Thanks in advance for any information

Andrew

everse polarity very likely welded the cut-out contacts closed. Generator was trying to charge the battery in reverse and battery won. Now, it may be an alternator & if so, then the diodes were forward biased in alternator and battery supplied enough current to burn them up.....now a short circuit.

pete 23 · Jun 8, 2022

You're saying it sparks and you have changed it back to positive ground I assume.
So, I would unhook the battery wire from the voltage regulator and see if it still sparks as I
think the points in the cutout arced and are now stuck together.

If it still sparks with that wire unhooked you have other problems but I doubt that.
Take the cover off regulator , look at cutout points. If stuck, pull them apart and polish the
contacts, with wire still disconnected. Point file , rifle file is best but fine emery will work
if completely cleaned after like with brake cleaner.

Then, hook up wire and battery ground. Polarize at generator by using jumper wire between that
battery terminal on regulator to a quick flash to the armature terminal on generator. Then hope it
works and didn't fry something else.

paul · Jun 8, 2022

With an alternator, that is bad. Or, often bad....

With a generator, as the others say it messed some up you need to sort out, but if you havent continued to abuse it should hope it ends up minor....

Paul

Andrew350 · Jun 8, 2022

Ok thanks everyone for the help, I will try this as soon as possible and let you know what I find out

Duner Wi · Jun 8, 2022

Is the ignition switch and lights turned off when you connect to battery??

Billy Shafer · Jun 8, 2022

Is the battery clean and in good shape?

KLPinNC · Jun 8, 2022

The points in the voltage regulator are welded together and are
shorted

Andrew350 · Jun 9, 2022

Battery is clean and in good shape, ignition switch and lights are off

I have not been able to look at it yet, but I will make sure to check the voltage regulator and generator.

Battery hooked up wrong on positive ground tractor

Andrew350

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JMOR

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pete 23

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paul

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Andrew350

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Duner Wi

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Billy Shafer

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KLPinNC

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Andrew350

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