4.5" Metabo grinder died?

[koditten]

Is my grinder salvagable?

It was working fine, noticed a slight dip in the RPM's when running free. It picked up to the normal sounding RPMs.

Went to grind some iron and it kind of hickupped a couple times then slowwed way down and ultimately stopped.

It is not locked up. It does nothing now.

I did not notice any "majic smoke" being dispelled and it does not have that buned ozone smell we all are familiar with when it involves electrical items.

Just wondering if I should waste my time tearing into it or if any others have an idea what went on.

As usuall, thanks in advance

KO

 

[brianpgriset]

I'd start by checking brushes especially if old and well used.

 

[jcouch1]

+1 on checking brushes/ brush holders... ~$15 fix for parts, easy smeasy to fix.

 

[koditten]

I'm not too well versed in the function of electric motors. Is bad brushes a symptom of rpm change and no run?

I'll check them in the morning if I get some time.

Thanks

 

[jcouch1]

in short, yes... You are usually spitting the chunks of the last bits of carbon from the brushes out of the holder causing a chaotic last 30 seconds before not running anymore. The other usual symptom is a dust cloud from the fan ports, but if you are using the grinder, you usually don't see this part.

 

[SEV22XS]

Check the brushes should be little black caps on the side unscrew and if there is next to nothing left replace them.

 

[Big Bad Dad]

Also check the wiring connections for a fatigued or broken wire.

 

[deter]

you may have to take the case apart if your grinder doesn't have the little black caps to remove. its still not difficult. You can probably find a repair shop to do it... still be a lot cheaper than a new metabo

 

[rlitman]

If you don't want to replace them yourself, and can't find a tool repair shop, I think a vacuum repair shop should be able to do brushes as well.

 

[artie325]

I rebuild my metabo grinder last year. It was pretty easy to do. I also changed out the power cord at the same time. If you know how to use a screwdriver, you should be able to do the job with no issues.

 

[bad_idea]

It is completely hopeless. Send it to me for disposal. I love my Metabo grinder, definitely worth fixing. Should be a easy fix.

 

[Chaz]

Worth saving... Its the best grinder ever made.