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Milwaukee fuel grinder making clicking / rattle noise


James1989

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 Hi everyone,

 

I recently bought a used Milwaukee grinder (M18 cag115x). When it spins down I noticed there is a strange clicking and rattle noise. Is this normal or is it a broken bearing?

 

Here is video I uploaded of the noise:

 

 

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  • James1989 changed the title to Milwaukee fuel grinder making clicking / rattle noise

Its a little hard to tell from listening but I think what you're hearing is normal.  The magnetic field and armature in the motor act almost like a brake so as it slows down they make a clicking noise as it jumps from one magnet to the next.  Also if you put a disk on and just turn it by had you should get some resistance and then that same click.

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