1. Use a screwdriver to open the fixing screws of the soymilk machine casing from the bottom.

2. Find the position of the fixed carbon brush from both sides of the electrode, remove the fixed weak current on the carbon brush, take out the spring, and then replace the new carbon brush in its original position.

3. Open the end cover of the motor and you can see the carbon brush and its installation structure.

Pull up the crimped spring, take out the old one, and replace it with the new one.