Question about Makita BDF452HW 18V Cordless Lxt Lithium Ion 12" Driver Drill Kit

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Makita LXDT04 Impact Driver Sparks coming out of it

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It could be that your brushes (PN CB440) are worn down so much that they can't make full contact with the armature or the armature (PN 619247-1) has a short in it causing excessive arcing. This would be evident by excessive burning or pitting on the commutator where the brushes make contact or missing sections of the commutator..

Posted on Jul 17, 2014


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

Hi there,
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Posted on Jan 02, 2017

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SOURCE: Makita 14.4V Cordless Impact Driver only works at high speed

Most cordless drill / drivers like this have electronic switchs which unfortunately would have to be fixed by a repair agent. Depending on it's age - make sure that you tell the agent that it never really worked properly, warrentys only cover parts that were faulty from manufacture and not wear and tear, so it may get fixed for free depending on the repair centre

Posted on May 19, 2009

  • 2176 Answers

SOURCE: disassemble , houseing makita Model 6935FD Cordless

I would recommend going to and typing in your model number for a schematic. Basically all you have to do is remove the 4 screws on the front holding the gearcase and then remove all the other screws holding the handle halves together. Let me know if I can help

Posted on Jul 14, 2009

  • 384 Answers

SOURCE: Disassemble a Makita 6980FDWDE Impact driver

Sometimes fasteners are hidden under labels.

Posted on Jul 24, 2009

  • 36 Answers

SOURCE: how do i take apart makita 12volt impact driver

check the L.E.D. and then replace it

Posted on Apr 21, 2010

  • 34 Answers

SOURCE: makita impact driver dead spots

Depends on model you have. There are 2 brushless models - BTD132 (14.4V) and BTD144 (18V) - both have big BL letters on housing. According to your picture, you have BTD140 which has brushes. When you open user manual, you can find section dedicated to changing brushes. In case it does not help, you migh want to check trigger. Juraj

Posted on Jun 08, 2010

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Hi,I have a makita impact driver, I press the trigger and don't work, only the light come on,I replace the trigger but I still have the same problem.

I would guess that you have a motor issue. It maybe as simple as needing new brushes. I have an Makita impact at work and it has carbon brushes and if one of those goes bad or hangs up it will stop the driver. Hope this helps!

May 14, 2015 | Makita Drills

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deep discharge protection activated to protect batterie measure on accu says nothing about the neccesary amperage in this case.

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Here is a breakdown of your drill. #36 is the reversing switch.

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The screw point got stuck inside of the makita

Low quality steel drill bits get stuck in the Makita because the hammer impact squashes the metal, forming a ridge that gets snagged on the anvil's steel ball bearing. Use only impact drill bits.

Sep 15, 2011 | Makita 18V LXT Lithium - Ion Cordless...

1 Answer

My 14.4 volt impact driver just buzzes when you pull the trigger and I can't figure how to get it apart

fist is the battery good, if it is then I would go on line to Makita and look it up for specs

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1 Answer

How to pull apart makita 6980 impact wrench

the battery is removed. remove all screws around the outside of the drill/driver. the side comes off. the motor is a johnson motor connected to the planetary drive and hammer/anvil assembly. the motor drive extends inside the anvil via one gear off the motor. the hammer and anvil come out as one piece. if you depress the center of theanvil with an arbor press, two ball bearings come out and the escapment comes out with the spring. now you can clean the inside of the hammer and gears of the hammer drive.

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