cleaning motor brushes

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Michal - 27 Apr 2004 06:43 GMT

Hi all,

I just had my Astro 05 commutator resurfaced and I am wondering how can
I clean the brushes? With everybody flying brushless now, my local hobby
shop doesn't stock the brushes. Whats the best way to clean them?
Dremel with wire brush wheel? Or just clean them up with alcohol?

Thanks,

Michal

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u*x sys admin, programmer, aviation enthusiast, photographer

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The Natural Philosopher - 28 Apr 2004 00:14 GMT

> Hi all,
>
> I just had my Astro 05 commutator resurfaced and I am wondering how can
> I clean the brushes? With everybody flying brushless now, my local hobby
> shop doesn't stock the brushes. Whats the best way to clean them?
> Dremel with wire brush wheel? Or just clean them up with alcohol?

Spin the motor up on a light load and at modest RPM till the arcing and
sparking slows down, and wipe verythig clean again with just about
anything you like.

The brushes just need to bed down. The dirtiness doesn't do any real harm.

> Thanks,
>
> Michal

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Model Forum / Radio Controlled / Air Models / April 2004

cleaning motor brushes