Question about Makita 6304LR 1/2" Chuck Electric Drills

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Replaced brushes. sparking near lower brush.still goes but no grunt

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The armature will be burnt out check by viewing where brushers run there should be burning inbetween the copper segments

Posted on Sep 26, 2009

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Posted on Jan 02, 2017

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2 Answers

When I run my Makita Impact wrench one of my brushes spark what is the problem


One can expect a small amount of arcing from a carbon brush. If one brush is arcing more than another, or if the arcing is following around the diameter of the commutator toward the other brush, the brushes need to be replaced and commutator cleaned with a commutator stone.

Apr 11, 2014 | Makita 6906 9 Amp 34Inch Impact Wrench

1 Answer

Makita ga9020-230 making grinding noise and then starting flicking sparks even after replacing the brushes, please help


It sounds like the armature is shot. When the armature goes bad you will see excess sparking from the brushes.

Jul 04, 2011 | Makita GA9020 Angle Grinder

1 Answer

Continuos sparking coming from the motor near to the brushes


This can be caused by either a weak brush spring or a shorted armature. A shorted armature will need to be replaced. Good luck!

Dec 03, 2010 | Ryobi Garden

1 Answer

Good day I have a 7" angle and my issue is sparking interior on bottom near brushes please advise to cause and solution


If it is sparking that is quite noticable, and certainly could not be confused as normal, I would take the brushes out and make sure the spring is in good condition, the brushes are of good length, and that they move freely within the brush holder. If all of this checks out, it is possible you have a raised bar on your armature. If the sparking is so severe that it comes with its own sound, it is possible you might have a winding issue.

Nov 24, 2010 | Makita Angle Grinder

1 Answer

Eureka canister vacuum cleaner Model 6865


The 6865 has a high rpm AMTEK Lamb motor, Brushes will seldom solve the problem at this stage.
Once the sparking and burning starts the conectiion between the brush and commutator is arcing and burning. If the sparks are blue, save your time.
A good service tech will run in brushes with a seating stone and a low voltage setup to allow new brushes to seat, but this is generally best accomplished on heavy duty , lower rpm motors.
IF YOUR ARMATURE IS SCRATCHY LOOKING OR WORN LIKE AN APPLE CORE,OR THE SEGMENTS ARE NOT PARALLEL IN THE SPACING YOU WILL NEED A NEW MOTOR.

Oct 16, 2009 | Vacuums

1 Answer

How do I replace the brush roll on my oreck xl??


Turn the vacume upside down. Remove the 5 screws on the bottom plate. 3 are near the brush roll, and 2 are near the back. Remove the bottom plate. take the belt off the motor end. pull up on both ends of the brush roll. Put new brush roll on making sure that you put both ends to the new position, not old. ( it is marked on one end, and there are marks on the side that goes up so the can match.)(If putting back the old brush roll you can switch to the old position. After a year or two you can switch the new brush roll to the old position.) Put the bels back on the motor shaft and then stretch and start the belt on the brush roll and rotate the brushroll by hand untill the belt is all the way on.
put the bottom plate back on and tighten the 5 bottom screws.

Apr 21, 2009 | Oreck XL Ultra Bagged Upright Vacuum

1 Answer

Replacing carbon brushes


The housing cover is removed by removing the one Torx (t-20 or t-25 ) screw from the end of the housing where the power cord goes inside.  Once this screw is removed the brushes can be quickly replaced.  Go to this page for an exploded diagram.
http://www.toolpartsdirect.com/cgi-bin/schematic.cgi/bosch/1215.034

The screw you want to remove the housing is listed as part 130 in the diagram.  Then the brush (part 801) can be unplugged an removed from brush holder (part 116) by gently pulling back the brush spring (part 126). Then the spring must be held back to install the new brush. Then plug it in, and replace the other brush, test the unit before replacing the housing cover.  The blue sparks generated by running the unit are normal and will decrease as the new brushes are worn to the shape of the armature.  Good Luck!

Oct 06, 2008 | Bosch Die Grinder 1215

2 Answers

Kenmore canister vac model 116. 2641381


Sounds like motor brushes may be going. Is the vacuum cleaner old? I suggest bringing the unit in for service to replace the motor brushes. Get a quote to see if is worthwhile to fix.

Feb 27, 2008 | Kenmore 22812 Bagged Canister Vacuum

1 Answer

Wont spin, and arcs.


2 bruhes in motor
replace motor brushes
use correct brushes from bosch

Oct 09, 2007 | Bosch Axxis WFL 2060 Front Load Washer

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