Question about Black & Decker Saws

1 Answer

Black & Decker DN227 550W Circular Saw: Doesn't run properly. Very light arcing at one of the brushes, bad noise. Gets soon hot. Brushes seem OK. Turns freely on bearings. What could be wrong?

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Black & Decker Master
  • 12,256 Answers

Try cleaning the commutator till its nice and shiny again. if it still arcs a lot you need new brushes

Posted on Apr 18, 2017


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

My black a nd decker circular saw just stopped functioning midway inuse

It is hard to say at this distance what is wrong. If it is oldish, the motor brushes may be worn down. It could be that a wire has come loose from a terminal in it, or a contact has broken in the on/off switch assembly. All those things have happened to me at one time or another.

Jan 18, 2015 | BLACK and DECKER POWER TOOLS Black And...

1 Answer

Troubleshooting circular saw

The armature may be shorted out. The brushes may not conform to the arc of the copper. Did you clean the armature? Did you deepen the grooves between the individual coppers? Sometimes brushes will arc for a while until they wear into the curve. If it is not hot, and not excessive, try running for a while to see if it lessens its arcing.

Aug 15, 2014 | Skillsaw hd77

1 Answer

Saw just cut out light works but saw wont

The problem could be with the brushes or the power switch. The light will still work if either of these things are not working properly. The brushes should be between 1/2" and 1/8' long and should move freely in the brush holder. The spring should be long enough and strong enough to push the brush against the armature. If the brushes are OK do a continuity check on the switch contacts.

Feb 22, 2013 | Makita 18V LXT Circular Saw

1 Answer

Makita circular saw wont run properly

Something more sinister. I think the armature is bad. (The center part of the motor that spins) Look at the brass bars on the comutator...where the brushes ride....there should be a nice even dark stripe the width of the brush all the way around. If one or two bars a discolored beyond that it's not good. Or if there is heavy pitting in between bars it's also not good. And lastly the more obvious sign is bars missing from the comm..

Dec 22, 2012 | Saws

2 Answers

Brushes arcing

Brushes arc for several reasons. If the spring over heated and lost its tension or the copper line from the brush to the cap broke/burnt off or the brush wore down too far to be pressed on the armature properly. The replacement brushes you need are Makita part number CB-124. If you still have exessive sparking after replacing the brushes you may have a bad commutator on the armature. The only way to fix that is to replace the armature, Makita part number 512831-0.

Oct 09, 2012 | Makita 5005BA 5-1/2 inch Circular Saw

1 Answer

My 35mm circulersaw model p6455 450watt black & decker seems to be overheating & the blade doesent spin properly? how do i fix this whats the problem?

I can't find any references to a B&D saw with model number P6455 but it sounds like you have one or two bad armature bearings or bushings if so equipped. If they are bad it will make a lot of noise at startup and the motor will get hot and stop working because it's working harder than it should and building up excess heat. It may be possible to replace the bearings if the armature and field weren't overheated too badly. You'll have to search the web for your make with the proper model numbe to find if parts are available and if it's worth fixing.

Dec 25, 2011 | Black & Decker Saws

1 Answer

Need a set of Brushes for a Craftsman circular saw model 315.27802 I tried Sears Parts and they are no longer available. Bill

Try anyplace that handles electric motor repair or tool repair. Most brushes are standard and probably a set from a black and decker saw will fit

Feb 16, 2011 | Craftsman Saws

1 Answer

How do I replace brushes?

two black brush caps either side of the motor - unscrew them pull old brushes out and replace. go to www dot carbonbrush dot com for replacements. or look to eurton electric for brushes.

Oct 26, 2009 | Black & Decker CS1012 7-1/4" 12 Amp...

1 Answer

Not cutting right - or at all

Depending on how much use the saw has gotten over the years the problem could be a very dull blade, worn out motor brushes, or a nearly worn out motor. The danger is that a power tool that is not working as it should is much more hazardous than a newer saw that is working properly.

May 21, 2009 | Saws

Not finding what you are looking for?
Saws Logo

Related Topics:

95 people viewed this question

Ask a Question

Usually answered in minutes!

Top Black & Decker Saws Experts

Craig Butler
Craig Butler

Level 3 Expert

1723 Answers

Doctor PC
Doctor PC

Level 3 Expert

7733 Answers

Ruben Bustamante

Level 2 Expert

119 Answers

Are you a Black & Decker Saw Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides