Re: (ET) Motor brushes

[Chris Zach <cz alembic crystel com>]

Could be, could also be the armature rubbing against the magnets (bad) 
or a magnet coming loose and rubbing against the armature (really bad). 
I'd take the motor apart and check.

Is this the drive motor, or a mower motor?

C

On 12/1/2021 10:29 PM, Willaim Alburty wrote:
> I’m wondering if badly worn brushes in a dc motor cause a grinding sound 
> when the motor is running. Will the motor run unevenly and maybe with less power? 
> Are there other indicators that brushes are worn down badly?
> Thanks for any help,
>
> Bill Alburty (E-12)
>
>
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