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tcoop 08-11-2012 09:57 PM

Makita 9523NBH Grinder
Has anyone ever changed the bearings and brushes in a Makita 9523NBH grinder? I have had this grinder for quite a few years and it has really been a good one.

Well after years of use and abuse it has picked up a vibration and a decrease in rpm's. I also have to manually give the wheel a spin to get it going, not the safest thing to do, but it works.

Has anyone ever repaired this model grinder? Any tips or advise is appreciated.

Tom in SC
55 Chevy 2nd
84 C10
97 S10

OneMoreTime 08-13-2012 05:28 PM

I would not bother as the repairs are way more than just retiring that one and getting a new grinder..Just not economic to repair that sort of tool..


lakeroadster 08-13-2012 08:12 PM

I replaced the brushes in my 15 year old 4" Makita Grinder last year when it was doing the same thing you are describing. The brush set was about $8.00. It works good as new. Took me all of about 10 minutes to install them.

$8 to fix a $60 grinder makes perfect sense.

Makita has parts / repair shops nationwide.

Here's a couple links you might find helpfull:

Makita - Authorized Factory Service Centers

Makita 9523NBH Parts List and Diagram :

MRTS33 08-14-2012 12:54 PM

Might also try for power tool parts.

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