Question about Makita 9553NB 4" Angle Grinder

1 Answer

Grinder only works when screws are loose on the head

My grinder stoped working. Tried to get inside to clean it up. Found that when I loosen the top screws and seperate the head from the body a little it works fine, but when I tighten the screws back it stops working. I cant seem to get inside to see what the problem is.

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  • info794 Jan 13, 2009

    How do I know if it's the bearing and where can I get parts? Thanks

  • info794 Jan 15, 2009

    Thanks for your help. I think it's actually the carbon brush set. I've ordered new ones. I'll write back if that does'nt work.

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I would suggest going to Makitatools.com and typing in your model number to look at a schematic. It could be numerous things that are wrong. I would think a bearing is going bad, but take a look and let me know and I will see what I can do.

Posted on Jan 12, 2009

  • David Ford
    David Ford Jan 13, 2009

    If this tool is in fact a Makita product I would go to Makitatools.com and look at a schematic. To find out if it a bearing if you are comfortable with the disassembly after looking at breakdown you can hold the bearing in one hand and spin the armature with the other it should roll freely. Also look for the outer race being loose.. Let me know if I can help further

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