How to Check Carbon Brushes on DC Motors
Ғылым және технология
Checking and replacing the carbon brushes on DC motors can be easy. Keith from eMotors will guide you through the process and touch on how often you should be inspecting the brushes, symptoms of worn out carbon brushes.
Steps to check and replacing your DC motor carbon brushes:
1. Disconnect power
2. Remove carbon brush covers
3. Remove brush electrical connection
4. Remove clips/springs
5. Remove Carbon brush making note of direction of beveled edge, and inspect brush
6. Inspect motors internals and motor commutator
7. Install new DC motor brush with bevel in the correct direction
8. Fasten clips or springs, replace covers
Operate your motor at no load to test it.
For more information, see this knowledge centre article on how to check brushes on a DC motor: www.emotorsdirect.ca/knowledg...
0:00 Introduction
0:25 Safety
0:37 Carbon Brushes in DC Motors
1:20 Maintenance Frequency
1:30 Worn Brush Symptoms
2:18 Inspecting and Replacing Carbon Brushes
4:53 Conclusion
Пікірлер: 28
Thank you for this video. It addressed all possible issues and answered all the questions I had. Clear and concise.👍 Much appreciated.
@emotorsdirect
6 ай бұрын
Thank you for the comment!
Just bought a miter saw. Cane with 2 spring had no idea what it was. Image searched on google and came to your video. So very useful! Thank you. All issues I've had with my other power tools could have just been a carbon brush 🤦♀️ very insightful .
@emotorsdirect
5 ай бұрын
Hi Firdus, thanks for the comment. Glad this was helpful! - Keith
Excellent. Concise and useful tips and recommendations.
@emotorsdirect
Жыл бұрын
Glad this was helpful!
thank you for the video about carbon brushes and commutator, can you please make the video about the field winding and its connection with carbon brush
@emotorsdirect
3 ай бұрын
Hi Sundar, thanks for the comment. We do cover how the DC motor works at a high level in this video: kzread.info/dash/bejne/dmmK1Jaah8u2fs4.htmlfeature=shared
Thanks! Great info!
@emotorsdirect
9 ай бұрын
Thanks Chance! Appreciate you watching and commenting.
Hi, I’ve got some problems in my Chicago chop saw motor. I bought it at a yard sale. The brushes are beat up a little but the big problem is that the little copper coils around the piece that the brushes are held are broken on one side. I don’t know what those coils are called and I don’t know how to take the motor apart to get to those part so I can replace them. Can you help me out or let me know how I can figure all that out? I appreciate your kind assistance. Have a blessed weekend.
@emotorsdirect
Жыл бұрын
Great question - it depends if you're referring to the springs that hold the brush in place, the commutator coils, or the copper wire connecting the brushes to power. If you're referring to the springs that hold the brush in place, those can be easily replaced. If the issue is the commutator or the copper wire connecting the brush to power, you may be better off to replace the motor. I hope this helps - let me know if you have any follow up questions.
Why on my motors is the copper plates wearing out and not the carbon brushes ?
@emotorsdirect
26 күн бұрын
There are a number of possibilities, either arcing, exposure to water, or some other current carrying medium. Hope this helps!
How can I check my picanto ultenator and change brushes
@emotorsdirect
2 ай бұрын
Hi Tshifhiwa, the Kia Picanto? I'm no car expert. You may be better off to consult an auto shop.
@iMeyask
2 ай бұрын
@@emotorsdirect hi, thank you for the reply.
How to remove "frozen" brush cover on a 1940's Black & Decker circular saw?
@emotorsdirect
Ай бұрын
What do you mean by 'frozen'?
@NoferTrunions
Ай бұрын
@@emotorsdirect The covers that much be unscrewed to remove the brushes will not turn to the point that trying hard will probably break the plastic slot.
I would have thought someone giving advice on dc motors would know how to pronounce commutator correctly.
@emotorsdirect
6 ай бұрын
Yeah you would think! I have to admit, I get a little camera shy and trip over some words.
Commutator not commentator :) Otherwise very informative.
@emotorsdirect
11 ай бұрын
Thanks Phooogle, I guess I got a little camera shy and mixed up my words!
@Phil_AKA_ThundyUK
11 ай бұрын
@@emotorsdirect Did a million times better than I would have done :)
@kurtkaufman
2 ай бұрын
Really *not* a problem. Great content and concise instructions. Thank you so much!
"Check every 3 to 6 months" yeah not that motivated maybe every 2 years
@emotorsdirect
4 ай бұрын
2 years should work just fine if you don't use the motor everyday. Brushes can last anywhere from 1,000-10,000 hours so more frequent checks are recommended for a regularly used motor.