1. Purchasing skills
1. Understand the model of power tools: Different power tools have different carbon brush models and sizes, so we need to understand the model and brand of our power tools, so as to choose the right carbon brush.
2. Carbon brush quality: When purchasing carbon brushes, pay attention to quality issues. Generally speaking, a good carbon brush material should be made of pure rosin, which can guarantee wear resistance and electrical conductivity.
3. Correct matching: When choosing carbon brushes, you need to pay attention to the different positions of the left and right, so as not to confuse them, and the left and right are symmetrical, and one is worn out, you need to replace both sides at the same time.
2. Solutions to common problems
1. Carbon brush wear: When used for too long, the carbon brush will need to be replaced due to wear and tear. Generally speaking, the length of the carbon brush should be around 5-6mm. If the length is less than 3-4mm, then the carbon brush needs to be replaced immediately.
2. Carbon brush arc phenomenon: When using power tools, if the carbon brush arc phenomenon is serious, it will lead to problems such as heating and noise increase of power tools. At this time, it is necessary to check whether the carbon brush is tightened and replace the worn carbon brush.
3. Carbon brushes that are too tight or too loose: When carbon brushes are installed too tightly or too loosely, there will be problems. When installing carbon brushes, the tightness should be carefully adjusted so as not to affect the normal use of power tools.
