Question about Bosch Drills

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Csb 500 re

I have removed the brushes, and while worn, don't look too bad. But the drill makes spluttering noises, and seems to lack power. Any ideas?

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  • Bosch Master
  • 1,896 Answers

The ancre and / or a part of the electric field damaged. drivinggear must be replaced if ancre was gone too , but in most cases its not worth to repair if it has its working hours on it.

Posted on May 09, 2016


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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

A 6ya expert can help you resolve that issue over the phone in a minute or two.
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Posted on Jan 02, 2017

  • 382 Answers

SOURCE: Hi, I have a dewalt dc925 drill. When running the

They all do that a bit. The sparks when starting up and stopping are normal. If it has been used alot brushes may be a good idea but before they need to be changed it will spark quite a bit.

It will not hurt to inspect the amount of brush material remaining.

Posted on Jan 06, 2010

Testimonial: "Thanks for your help! It looks like there is still some live left on the brushes...I guess I was just overly concerned! :)"

  • 425 Answers

SOURCE: SbE505 hammer drill needs new

You shouldn't have to take the tool that far apart. Just remove the screws that hold the switch handle together, remove the handle, and you should see the brushes. The brushes are at the rear of the tool, not the front.

Posted on Jul 21, 2011

  • 425 Answers

SOURCE: On my BOSCH CSB 470-RLE 470w electric drill the chuck is slipping i can hold it in my hand and it wont move

It is a spring loaded hammer drill. You need to push the chuck down just a bit for it to engage the clutch. If it is still slipping then either the clutch pieces (items 23 and 32) are worn or item 32 is spinning freely on the spindle shaft. Here is a parts diagram.

Bosch CSB470-RLE diagram

Posted on Aug 25, 2012

  • 65 Answers

SOURCE: how do you know when the brushes need changed in power drills

it depend of model,some tools have auto shutdown brush,when brush are worn,the tool stop
when the wire is veritical:1/4" long
when the wire is horizontal,the brush can be shorter
in all case,when spark are bigger on armature comutator and brush are short, it is the time to change on your tool

Posted on Nov 21, 2012

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Sparking from the rear air vents during use--cause and how to fix

The most likely cause is the carbon brushes that make contact with the armature are badly worn. There should bea circular port on either side of the housing near the rear. They look as if a coin would be the right shape to unscrew them.when removed you should see a spring and a carbon block on the end. There will be a severe concave gouge at the end. Perhaps almost no block at all. It is simple to replace then bushes, simply slip in the new ones and align the spring to the cover and screw back on.
Take note that the bushes may so badly worn that they will fall apart when removed.
Get new "carbon bushes"for that model drill before disassembly, they are not expensive, look on ebay. If this is not the problem the chances are It is a faulty armature, in which case by a new drill, happy fixing.

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How do the wires go on a bosch CSB650 drill

If you mean the R/l switch attached to the top of the switch. The wires from the brushes go to diagonally opposite connections and the field leads in the others. If it go slow in forward motion swap the brush wires over with each other.

Jun 07, 2012 | Bosch Drills

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I have a Makita BHP454 cordless drill and lately when I pull the trigger it won't do anything. The lights work but it doesn't move. I have to give it a hit to make it work again.. What would b the...

The first thing to check is the battery: is it fully charged, are the contacts in good condidtion and do they make good contact with the contacts on the switch.
Next thing to check is the brushes. Remove the rear cover and check the brushes and springs that hold them down on the armature. If the brushes are worn to where they dont' make good contact or the springs are not holding them down with enough pressure they won't make good contact and sometimes a good hit will make them touch enough to work again. The brush part number is CB-440, if the springs are bad you have to replave the whold brush holder, part number 638614-1.

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I have a Kupa/KP36 that is making noise but the bit is not rotating. I have check the cord for power, tried different outlets. Unplugged hand piece replugged it in changed bits and still the same result....

Sounds like the chuck holder is already worn and needs replacement.
If the motor still runs but the drill bit won't turn the problem would be the chuck adjuster( the one that holds the drill bit and tightens it ).
If the motor does not turn but there is a whining sound the problem would be the armature bushing ( it is inside the motor which the rotor/armature rotates). The armature does not turn anymore.
Fuse is out of question because the motor still have some power. Check also the motor brush.
Disassembling it requires to unscrew all the screws on the side and carefully remove the side cover, you can clean it and dust it off.
Hope that helps you out!

Jul 07, 2011 | Drills

1 Answer

Hi, I have a dewalt dc925 drill. When running the

They all do that a bit. The sparks when starting up and stopping are normal. If it has been used alot brushes may be a good idea but before they need to be changed it will spark quite a bit.

It will not hurt to inspect the amount of brush material remaining.

Jan 04, 2010 | Dewalt DC925 Cordless Drill

1 Answer

Drill starts and stops like there is something loose on the inside

This is typically caused by one of two things. Worn brushes or a bad switch. How old is drill and has it been used a lot? If the brushes are worn/bad they will need replacing. If the switch (trigger) is bad it can sometimes be fixed by spraying an electronic contact cleaner in it. This cleaner can be purchased at Radio Shack. I have also had good success using WD40. Spray the switch down good (power removed) and manually operate it a few times, wipe it clean, plug it in and try it again.

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Replacing carbon brushes of csb 500 re bosch drill

bosch brushes are unique. they have a spring embedded in the carbon so when the length gets too short, the spring lets go and raises the brush above the commutator and the appliance stops. you need to remove the handle partially or the brush covers and unscrew the brush holder(s) two small screws secure the brushes and holder to the appliance.

Oct 13, 2009 | Bosch Drills

1 Answer

Has no power barly drills gets stuck when drilleig

It appears that the carbon brushes are not making a good contact with the armature or they are badly worn

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