Question about Dewalt DW703 10" Compound Miter Saw

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My 10"Dewalt drop saws brake no longer works. I've

My Dewalt drop saws brake no longer works. I've changed the brushes but it made no difference. Can someone offer any more suggestions please?

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  • nessnbrad Jun 27, 2009

    Thanks lecovert! Faulty wire at on off switch.

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When you changed brushes did you clean the armeture,should be bright an shiney,if yes then go to basics check imput power to on off switch,if yes check on n off switch is working right.check wireing while there(for broken wire ,loose wire)if all checks out ok i would look at armeture and windings.

Posted on Jun 27, 2009

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https://images-na.ssl-images-amazon.com/images/G/01/th/aplus/dewalt/dewalt-DC390B-main-sm.jpg take down the black cover in the end of motor. and there will be brushes. take out old ones. mesure them wide and height. buy new one's. add to the place and have working thing ;)

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1 Answer

The motor is running slower and the engine begins to smoke as if it is burning up. A suggestion was to replace the brushes.


It sounds like some oil has gotten onto the armature of the motor where the brushes are. That will cause the symptoms of what is happening.
Get some Electric Motor and Brake Parts Cleaner at an auto supply house. Note: It is not flammable.
If you cannot find it. Get the Regular Brake parts cleaner.
FOLLOW THE INSTRUCTIONS BELOW.
1 Allow the saw to cool to room temperature.

2 MAKE SURE IT IS UNPLUGGED

3 Spray the cleaner it into the vent holes
4 Carefully remove the brush caps (Small Black things that look like buttons) There are two of them.
5 Spray inside where the brushes are.
6 Let it dry out for a day.
7 Re-assemble
8 Plug it in and see how it works.

If it is still running roughly after you do the above steps. Get it serviced. There is damage to the armature and brushes.

Hope this helps.
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1 Answer

How do you change the brushes


You have two, 1/2 inch flat head screw things on the right side of the motor, pull them out, the carbon should be at least 1/4 inch long, min, brushes can be bought at the hardware store. The electric brakes on those saws eat them brushes up. Check it out.

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try to find someone on craigs list or ebay selling one for spare parts.

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Did you sense an odd smell? Try removing the brushes, there should be two, it could be one is worn too short or the connecting wire is broken.

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2 Answers

No power it just died, what could be the problem? We tried other outlets and it still won't work.


CHECK FOR ANY BREAKS OR WEAR IN CORD , IF NONE IT MAY BE THE CARBON BRUSHES ARE WORN OUT .

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