Question about Makita 7 1/4" Circular Saw 5007NB

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I can't get the brushes out of the saw - Makita 7 1/4" Circular Saw 5007NB

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It sounds as if you might have a little more wrong with the saw than just the brushes.

Posted on Jan 29, 2013


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Skil 3316 Compound Mitre Saw 10"

I suspect that the brushes have fallen out between the end bearing and the armature bars.. Try removing the brushes and see what happens.

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Where do I get a set of brush for a mastercraft 14'' abrasive chop saw

Your best bet in this situation is to find a tool repair center that has a large supply of brushes on hand and is willing to look for a set that will work in your saw. At my repair center I do get tools like yours that don't have repair parts available. Most brushes come in standard sizes but the caps on the spring have to be compatable with the brush holder to work properly. If you don't know where a repair center is, go online and look for Authorized Service Centers in your area. You can get more specific and look for Dewalt, Ridgid, Makita, Milwaukee, etc., service centers.

Jan 18, 2013 | Saws

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Skil saw stops I bump it it starts then it stops I bump it it starts

The two groves could be caused by the auto stop pin in the brushes but I would also check the brushes are not getting stuck in the brush holders.

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My saw has a weird power surge at start up.

The brake problem could be caused by 3 things. The first thing to check is the brushes. Unscrew the brush caps or pull the back housing cover off and check them (depends on the type number). The brush holder and everything should slide out. They should have clean smooth action going in and out of the brush holders.

Next thing to check is the switch. Does it have a clean click when you use the switch and when you release it? Sometimes dust gets in there and messes with it.

The last thing in the field coil in the motor. The current is reversed when the switch is let go and slows the motor.

It's probably the brushes.

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I juist replace the brush on my B & D 1710 miter saw. Now I can't get it to work. Is there a special way to replace ethe brush?

No as long as they move freely in the brush tube they should be fine. You have another problem, let me know what the old brushes looked like and I will try and help

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Porter Cable Tiger saw 9735 stopped working

blow it out and spin the motor by hand you may have saw dust blocking the brushes. If that's not it check the brushes to see if they have life left in them. If not that check the cord for an open with a volt ohme meter.
Hope that helps!

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Saw motor is sparking

Most of the time sparks in these tools come from where the brushes make contact with the armature. Some causes for sparks are: The brushes are worn down to where they don't make firm contact with the armature. Brush springs overheated and no longer push the brush down on the armature. The comutator on the armature is damaged and causes the brushes to spark excessivly. You can take it apart and try to find which parts are hurt but I don't know if any Clarke Power Products parts are still available. The company went out of business around 2009 so you'd have to find someone with left over parts. It may be easier to buy new and go with a name brand and new warranty.

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1 Answer

My saw will cut for 5 seconds and then the blade stops spinning. When I back the blade out it starts again and the process is repeated. It takes a long time to cut wood this way. What's the problem? Is...

I would suspect a combination of the two! You blade probably isn't sharp and your saws brushes are probably getting worn. The brushes are made of carbon and are pushed up against the rotor by a spring. As the brush wears down the spring doesn't put as much pressure on the brushes which means it will stop working when placed under heavy load.

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I have a 10'mastercraft table saw with the carbon brush gone,and cannot not find one no place,cannot find a scrap one anywhere could you help

Try this link. If that doesn't work, see if the motor has a manufacturer or model number on it, or if the old brushes have a number stamped on them and use that to search online. Go to google and search "motor brushes" Good luck.

I hope this information allows you to resolve this issue. If you need further assistance, please post back with a comment to this thread.
If I've managed to answer your question or solve a problem, please take just a moment to rate this post....thanks!

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1 Answer

Motor runs unevenly. Rpm's increase & decrease

Sounds like the brushes are almost gone.Do you see a lot of sparks inside,that's where the brushes are located.Unplug the saw and disassemble.I use cardboard to punch the screws in so I don't loose them.This is what bad brush looks like There will be two in your saw.I have a good URL that has parts but I don't know the model numbers.We aren't allowed just give a website unless you ask for it.


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