How To Repair Carbon Brushes

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Concord on. WAIT right there. Before you ignore this mail service on how to replace the carbon brushes consider this … nigh appliances have motors, most motors have carbon brushes and the about common thing to stop a motor from working is worn carbon brushes.

If yous know how to replace them you can fix almost anything motor and save hundreds of thousands of dollars in your lifetime. Total exaggeration in terms of coin saved unless yous happen to own a nuclear power plant, but I had to get your attention.

Irresolute carbon brushes sounds like something merely a large man with a hairy belly would attend to, but trust me … no pilus is required.  If you lot tin supervene upon a battery in your smoke detector, you lot can supersede a carbon castor.

Just to suck you in a little more than, here's a list of things that usually accept motors with carbon brushes.

What has a carbon brush?

• Power Tools
• Vacuum Cleaners
• Washing Machines
• Dryers
• Blenders
• Kitchen Aid
• and MORE.

Not all motors accept carbon brushes that yous can replace, just nearly of them do.  And it really is as easy as replacing a battery.  Or close to it anyway. That'southward another tiny scrap of exaggeration but I can sense you need a little encouragement.  It'south manner easier than getting rid of back fatty.  I can guarantee that.

This … is a carbon brush.

I know.  You were expecting an actual castor.  Surprise! They don't look similar brushes.  The one on the left is a new carbon brush.   The one on the correct is a worn carbon brush. It'south like a pencil eraser that's been worn out.

A carbon brush is basically the "thing" that conducts the electricity to the motor.  Information technology actually conducts it through the motor's commutator, just since I don't intendance nearly that, I effigy you don't.   Don't worry about what a commutator is.  Nobody knows and nobody cares.

Carbon brushes are congenital to vesture downwards.  If they didn't wear down, and they were constantly rubbing difficult against the (nobody cares) commutator it would damage the commutator.  Which is a bad thing to do even if you lot don't care most the commutator.

So carbon brushes are made of a textile that is softer than the commutator.  Afterwards years of vesture, they end up being just tiny little nubs and need to be replaced considering they no longer acquit electricity to the all of import (but we don't care about information technology) commutator.

If the motor stops running, or the thing stops turning, sucking, blending or mixing … it's probably worn carbon brushes.

To replace them you demand to do two things.  You need to discover out WHAT carbon brushes your motor takes and and then y'all need to buy them.

You can Google your appliance and run into if you lot can find the carbon brushes for your item motor there, or you tin can call an appliance repair store with the make and model of your appliance and take them look it upwardly for you.  Then if they carry them in stock yous can either buy them from your local appliance repair store or you can order them online.  I ordered mine online considering my apparatus repair shop didn't have them in stock.

They arrived within 4 or v days.

And then let'due south do this.  Let'south replace carbon brushes!  Considering it'southward FUN and nosotros're FUN and everyone'southward hither then we might likewise!Come across?  Isn't this the nigh exciting thing you've ever read about? And you lot idea this was going to be boring.  Hah.  I showed yous.

I'll be showing you how I replaced the carbon brushes on my Bosch Front Load Washing motorcar.  This is the machine I owned for twenty years and merely replaced recently.  The technique will be like no affair what the appliance though.

Remove the motor.  Sounds scary but isn't.  O.K., it was a little scary pulling the motor out of my washing machine simply now that I've done it I realize it really isn't scary at all and in fact I immediately felt superior to pretty much anybody else in the world the moment I did it.

Removing the motor from a hairdryer won't be well-nigh as scary.

Always UNPLUG whatever you're working on before you piece of work on it.

I removed the back cover of my washing motorcar and located the motor with my eyeballs.

Whatever electrical that was fastened to the motor got asunder.

There was this footling greenish wire …

And this large plug of wires.

The inside of a washing motorcar and motor is filthy.  Wear surgical gloves.

Once the electrical is disconnected you can remove the motor.  This item motor was held in past ii bolts.  Ane at the front of the motor and 1 at the dorsum.

Loosen the bolts.  First the one at the front.

And then the i at the back.

Now the motor will pull out with a trivial wiggling and work. It doesn't counterbalance much.  A few pounds, so don't worry near that.

Drag it onto your piece of work space and first looking for the 2 carbon brushes.   I'1000 pointing to where the 2 carbon brushes are.

Y'all can recognize the carbon brushes by the clips.  This is what you lot're looking for.

Simply pull the electrical connection autonomously either with your fingers or with needle nose pliers.

The bodily carbon brush is held in place by a small-scale contumely clip which needs to be wiggled out of its spot.

And so just requite a little pull to pull the former castor out. Make certain you pay attention to what direction the carbon brush came out! It has a beveled border and the new one has to become in the same way the erstwhile one came out, otherwise the brushes will be rubbing on the (nosotros don't care) commutator the wrong way and won't work.

Every bit a reminder, this is the old brush beside a new brush.  Yous can meet how worn downward the quondam one is.  No wonder it didn't piece of work anymore.  I wouldn't piece of work if I was that worn out either.

Now it's time to put the new carbon castor in.

Only feed it into the pigsty you took the one one out of, making sure to put it in the same manner. You can see I drew a motion picture with a Sharpie on my  motor so I wouldn't forget which direction to put information technology in.

I had trouble getting information technology all the way down so I just used a bamboo skewer to coax it down.

Squishing the springy whorl downwardly takes some patience and fiddling.  Just keep at it and information technology'll all go down.  Then insert the clip into the slot.

Reattach the electrical clip.

And you lot're done.  Now supercede the other carbon brush the exact aforementioned style.

Drag your motor back to your apparatus, in this example my washing car, and put information technology back in place.

Materials

• Replacement carbon brushes

Tools

• whatever you need to remove motor from casing.

Instructions

1. Remove motor from whatever appliance you are replaces the brushes on. Make certain information technology's unplugged!
2. This might require that y'all undo wires running to the motor and whatever screws or bolts that might be holding it in place.
3. Locate the carbon brushes on the motor and remove their electrical wires.
4. Pull brushes from their housing in the motor. Pay attention to what direction they are in. Carbon brushes are angled on the end and the angle needs to be in the aforementioned direction when yous replace them.
5. Insert your NEW brushes and then do everything in reverse to put your motor back together.

I don't know well-nigh you only I experience confident that I could set up pretty much whatever problem now.

Except back fat.

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Source: https://www.theartofdoingstuff.com/how-to-replace-carbon-brushes-on-any-motor/

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