Question about Dewalt DW788 Heavy Duty 20" Variable Speed Scroll Saw: DW7881 Worklight

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Where are the brushes in the dewalt 788 20" scroll saw? Mine keeps blowing fuses & I think the brushes need cleaned but don't know how to get to them

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  • 206 Answers

Blowing fuses is not caused by brushes unless there is a huge spark show going on and if that is the case your armature will be trashed as well - the electronic module in that saw is notorious for failure and that is where I would start

Posted on Jun 19, 2014

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Posted on Jan 02, 2017

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  • 2 Answers

SOURCE: i have a dewalt scroll saw the air hose came off

lo que pasa es que esta mal el boton de arranque conosido como resistencia bariable

Posted on Apr 20, 2009

  • 12 Answers

SOURCE: I have a 20'' dewalt scroll saw that will not start

If you are getting voltage then it is most likely the control board. You would need to take it into a repair service center and they would have to pull the whole thing down to repair.

Posted on Feb 25, 2009

rowdy45176
  • 2176 Answers

SOURCE: I have a Dewalt dw 705 miter saw.when you pull the

the armature needs to be cleaned or it is possibly bad (open bars) They make a special cleaning stick called a commutator stone that you might be able to purchase at a local repair shop. If you are not comfortable trying this I would recommend taking the saw with you, To clean properly you have to remove a cover and have the saw running, I would also check for proper movement in the brush tube allowing the brush to freely contact the armature. Let me know if you need more assistance and I will try and help.

Posted on Nov 13, 2009

sonicboomele
  • 1557 Answers

SOURCE: I lost my manual to my Dewalt DW788 Scroll saw.

he-manuals.com/dewalt-dw788-manual/ -

this should get you back on track

good luck

Posted on May 15, 2010

  • 65 Answers

SOURCE: how do i replace brushes on dewalt table saw

unscrew brush cap on each side of motor and pull brush out
do it reverse with new one

Posted on Nov 23, 2012

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My DeWalt scroll saw will not turn on. Have checked outlets and would like to check fuse. Not sure how to open fuse hatch without risking damage. I keep all manuals but can't locate one for this saw.


take a small screw driver and push down on the clip at the top of the fuse holder, it should open and you cans ip iy out. be sure and replace the fuse with a 3 AMP FAST BLOW ( not a slow blow) oldcodger2

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1 Answer

Dw364 looks like an arc welder where the brushes are , blows breakers and electric brake doesn't work DEWALT WILL NOT ASSIST


could be a couple problems, first unplug tool and remove brushes, I would assume they are burnt or short, next while turning blade by hand look at the commutator to see if there are raised bars or extreme discoloring, if so the armature needs replaced. I would start with these 2, after installing new brushes you probably have to clean the commutator. Let me know if you need more assistance.

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My saw sparks more than normal at the brushes. I need help solving this problem


I would get an airhose and blow the motor clean of any sawdust first and then i would check the brushes and brush springs. just a few ideas. Jeepfxr

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1 Answer

I have a Dewalt dw 705 miter saw.when you pull the trigger the saw starts for a second and then shuts off. I have replaced the brushes and it worked for a few minutes and quits. the brushes do not seem to...


the armature needs to be cleaned or it is possibly bad (open bars) They make a special cleaning stick called a commutator stone that you might be able to purchase at a local repair shop. If you are not comfortable trying this I would recommend taking the saw with you, To clean properly you have to remove a cover and have the saw running, I would also check for proper movement in the brush tube allowing the brush to freely contact the armature. Let me know if you need more assistance and I will try and help.

Nov 10, 2009 | Dewalt Saws

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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 .

Oct 28, 2009 | Dewalt DW788 Heavy Duty 20" Variable Speed...

1 Answer

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common problem with this saw is the brushes when worn down to about half inch, won't go into the brush holder any further and starts to arc against the commutator. eventually the heating will burn out the commutator. a replacement armature will cost you $75 plus shipping.

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Metal chop saw blows breaker


Is there anything else running while you are cutting? If not is the breaker 15 amp or 20 amp. If its 15 amp, I would change it to a 20 amp breaker. Make sure the wires are thick enough to handle the extra load. If this isn't the problem check the cord from the saw to the outlet.

Good luck!!

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