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Old 02-01-2012, 02:24 PM   #1
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Brake Magnets - mildly confused

So, had all four wheels off today for the annual bearing repack.
Noticed that all four brake magnets are more or lessevenly worn but also noticed that, by design, the metal outer jacket of the magnets wears along with the brake material in the center. So, how do I know when the magnets are done?

When they are worn down to the little screw heads? Is there a finite thickness measurement?

Help would be gratefully accepted.

Mike
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Old 02-01-2012, 02:35 PM   #2
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Originally Posted by n2916s View Post
So, had all four wheels off today for the annual bearing repack.
Noticed that all four brake magnets are more or lessevenly worn but also noticed that, by design, the metal outer jacket of the magnets wears along with the brake material in the center. So, how do I know when the magnets are done?

When they are worn down to the little screw heads? Is there a finite thickness measurement?

Help would be gratefully accepted.

Mike
Mike.

When round magnets wear down to the TOP of the 3 brass screws, there done.

If you go beyond that, they will wear into the wire coil.

When that happens, you will have an electrical short facing the controller.

Then, anything can happen.

An electrical short, of any kind, is never OK.

Andy
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Old 02-01-2012, 02:52 PM   #3
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If you can see the wires in the coil, it's shot.

As you're probably aware, it's best to replace the whole brake assembly with new loaded backing plates, which will include shoes and magnets.
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Old 02-01-2012, 04:03 PM   #4
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An electrical short is a good thing, if you're the one holding the Tazer.
Not so good on the other end.
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Old 02-02-2012, 06:56 AM   #5
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Thanks, all

mike
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