Question about Makita Tools 18V 1/2" Lxt Lithium - Ion Hammer Driver - Drill Kit - BHP451

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Makita 125mm angle grinder (9555nb) need to replace gears, where can I find parts at a reasonable price?

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Try looking hear.

Posted on Oct 11, 2009


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The Makita part you are looking for is:
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Replacing the gear on makita angle grinder

Are you replacing both gears? The armature gear (pinion) is usually held on with a nut or else is pressed on. The spindle gear is also pressed on. Most spindle gears will come as an assembly with the gear and spindle and housing all together.

If yours doesn't, then the spindle will need to be pressed out of the housing, and then the gear pressed off of the spindle. (Always replace the grease as well when replacing gears.)

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I left my Makita 9555NB angle grinder out in the rain overnight. I brought it in out of the rain the next morning and left it to dry inside the shed for two days. It now seems dried out. Would it be safe...

Ive had some power tools left underwater in wheel barrows that filled up.

It is not the safest thing to go trying. But if it is dried out, I would plug it into a surge protector, switch it on, and set it away from you, then turn the surge protector on.

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I have three makita grinders they are the best. One problem I have though is the push down button for locking the spindle for removing the disk on two of the grinders seems to be worn out .Is there any...

yes there is, go to "" and with your model number you can download a breakdown for these tools. There is a plastic cap that snaps on the pin, you will have to replace the cap also but after removing the gear housing you pry the cap off and them remove the lock pin. Clean the area on top before reinstalling. Let me know if you need more assistance and I would need the model numbers so I can give you part number.

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Makita Angle Grinder not working

check inside for any loose connections plus check the brushes. if like you say it is smoking it could be a trip to the wheelie bin for that one.

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You need the 4" rubber pad, Makita Part #743009-6. It can be found on websites like

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Grinder is giving out sparks from back and giving burnt smell

Hi there,

Brushes. The brushes have worn down to the contacts or worse, to the springs.

The good news, brushes are inexpensive.

If you are mechanically inclined and comfortable dismantling power tools of medium to high complexity this is something you can do at home.

HOWEVER, if you have even the most minimal reservation, I would recommend bringing it to a shop so an experienced repair person can replace them. For example, if you need instructions on how to re-assemble planetary drive gears, bring it to a shop.

The procedure should be reasonably priced and quickly accomplished.

Best regards

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How do i replace the brushes in 9557pb makita angle grinder?

Take apart the rear portion of the case -- the part the cord enters -- two halves -- screws in side -- you'll see the brushes -- they are in holders held in by springs and plug into the winding.

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Something wrong with the armature

If the armature is shot, it will spark a lot where the brushes are touching the armature comutator. To remove the armature:1 Remove brushes. 2 Remove 4 screws holding the gear box. 3 Pull away gear box from the body. The armature may come with the gear box or not, it's only pushed in, so you should have no problem to disassemble it. If the armature stay in the grinder, use two skrew drivers to pray it out. You may not see anythink wrong with it, but it may be no good . That's Makita special, they don't make it good as they used to. The price for new grinder is about $130, for armature $65. field $40

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