When to Change Your Carbon Brushes

carbon brushes blog

Switches and carbon brush caps, for example, are just a few of the numerous operating components of your power tools, making it tough to pinpoint exactly where the issue is.

It’s inevitable that something will go wrong with a system this complex, whether it’s due to a flaw or overuse, so knowing where the problem rests is critical. When it’s time to repair your power tool’s carbon brushes, you’ll want to know that they’re to blame for the tool’s malfunctions.

What are Carbon Brushes?

All power tools have carbon brushes, which are a small but crucial component (1). In motors, they act as a conduit for the flow of electricity between the wires that are stationary and those that are revolving. They’re made to withstand a lot of stress and are therefore expected to last for a long period.

When a power tool’s carbon brush begins to wear out, you may notice a decrease in performance.

In spite of this, noticing the indicators early can help you have them changed as fast as possible and prevent further damage to your motor and power tool, which leads us to our following step.

How to Know if Your Carbon Brushes Need Replacing?

You’ll notice these symptoms if your motor brushes are worn out.:

  1. Worsening Performance: The gadget will cease working, which is one of the first things you’ll notice. For starters, you may have to shake it a little to get things rolling, and it may not be as fast as before.
  2. Smells of Burning: An overpowering burnt-odour is another telltale sign of a defective carbon brush. Because the brushes are worn down to nothing, this is a telltale indicator that something is coming apart in the machine.
  3. Sparks: Despite the fact that little sparks are prevalent with power tools, huge ones are not. You should replace your carbon brushes if you see this. The cooling vents on your tool allow you to keep an eye on the sparks and determine whether or not the problem is growing worse.
  4. Inconsistent Power: If the tool suddenly stops working while you’re using it, your carbon brushes are worn out. This is a sure indicator that they are no longer there.

Can you repair a carbon brush?

Carbon brushes can’t be repaired, thus the only option is to get a new one, which is actually pretty easy to accomplish.

Can you buy new carbon brushes?

Yes, you can visit TDO carbon to buy a new carbon brush.

Why maintain carbon brushes?

It doesn’t matter if you use your power tool every day at home or at work; whatever the case, you should take steps to keep it well-maintained. In certain cases, it is fine to wait until the carbon brushes on your power tools indicate that they need to be replaced.

Every now and then, it’s a good idea to inspect the carbon brushes on the tool to make sure they’re in good shape and ready for use.

Leaving worn carbon brushes in your power tool for an extended period of time might harm the armature, requiring an expensive repair. As a result, be on the lookout for indicators such as sparking, foul odours, and underperforming power equipment to determine if the carbon brushes need to be replaced.

When should you definitely replace a carbon brush?

Carbon brushes may be tested by keeping an eye on them until they are worn down to about a quarter of an inch. Brushes should be replaced whenever they show any symptoms of wear and tear, such as cracking or burning.

It is possible that the spring has a broken lead and needs to be changed if the colour of the spring changes (such as rainbow patterns).

In addition, if the spring has broken, the carbon brushes will also need to be replaced.

What does a worn carbon brush look like?

When a carbon brush has worn down to half its original size, it’s likely worth replacing it. The carbon brush holder gives you an idea of what the original size was.

Here’s a good image of what a worn brush looks like:

worn carbon brush