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Unread 04-22-2015, 02:26 PM   #1
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Default bench testing a motor (picture)

Can someone tell me what to hook up, where, to bench test a motor. I want to insure it's fixed before re installing the trans axle into the cart. See attachment.

thanks
Pat
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Unread 04-22-2015, 02:33 PM   #2
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Default Re: bench testing a motor (picture)

To test run a SERIES motor

Remove all cables from the motor; connect a jumper from A1 to S1. Connect 12 to 24 volts, positive @ A2 and negative @ S2. Swap S1 and S2 to change rotation direction.


NOTE: ONLY do this with the motor attached to the transaxle! Doing this with the motor out of the cart will allow the armature to bang around since it relies on the input shaft on the rear end to center it.
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Unread 04-22-2015, 04:07 PM   #3
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Default Re: bench testing a motor (picture)

A picture is worth a thousand words.
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Unread 04-22-2015, 07:42 PM   #4
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Default Re: bench testing a motor (picture)

Thanks guys.
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Unread 04-22-2015, 09:01 PM   #5
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Default Re: bench testing a motor (picture)

Strap that sukka down!!! They gots a lot of torque!
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Unread 05-06-2015, 02:17 PM   #6
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Default Re: bench testing a motor (picture)

I am looking at a used cart in good visual shape but dead batteries. For $500 I'm willing to take a risk but would like to test the motor. I understand about jumper A2-S1 and contact (briefly) with 12v to see if it turns (as above) My question is -- can I just jump 12v off my truck for this test or is that asking for trouble?
Not trying to hijack this thread just asking for clarification on the test above. Hope that is okay.

Last edited by Philthy; 05-06-2015 at 02:40 PM.. Reason: Clarification
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Unread 05-06-2015, 03:32 PM   #7
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Default Re: bench testing a motor (picture)

I don't see why not...

to BGW
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Unread 05-06-2015, 03:38 PM   #8
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Default Re: bench testing a motor (picture)

Jack up the rear end off the ground and make your last connection to the end of an old cable connected to the motor. There will be sparks as the motor will instantly draw everything it can from the battery and you don't want to be arc welding on a motor stud threads.
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Unread 05-06-2015, 03:57 PM   #9
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Default Re: bench testing a motor (picture)

I knew to jack the wheels off the ground but didn't think about the extra cable. Thanks. Improvised arc weld to the post might not be the best idea. I might have to replace two of those contact terminals anyway since he says two have the ends broken off. There is enough left to clip to for the test.
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Unread 05-06-2015, 04:31 PM   #10
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Default Re: bench testing a motor (picture)

to be honest, I didn't think about it the first time I did it either
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