The small angle grinder is a power tool that we often use in our daily life, but the maintenance of the angle grinder is usually ignored, so I remind everyone that maintenance is also required in the process of use.

1. Always check whether the power cord connection is firm, whether the plug is loose, and whether the switch action is flexible and reliable.

2. Check whether the brushes are worn too short, and replace the brushes in time to prevent excessive sparks or burnt armature due to poor brush contact.

3. Pay attention to check that the inlet and outlet of the tool cannot be blocked, and remove the oil and dust from any part of the tool.

4. Grease should be added in time.

5. If the tool fails, send it to the manufacturer or the designated maintenance office for overhaul. If the tool is damaged due to abnormal use or man-made disassembly and repair, the manufacturer will generally not repair or replace it free of charge.

6. Check the mark of the angle grinder. The angle grinders that cannot be used are: unmarked, unclear marks, unverifiable, with or without defects.

7. Check the shortcomings of angle grinding. There are two kinds of inspection methods: visual inspection, which directly observes the surface of the angle grinder for cracks and other problems; knocking inspection, which is the main inspection method inside the angle grinder. The method is to hit the angle grinder with a mallet. If there is no problem with the angle grinding, it should be a crisp sound, if other sounds indicate a problem.

8. Check the rotation strength of the angle grinder. The same type of angle grinder of the same batch should be checked for rotational strength, and angle grinders that have not been tested must not be installed and used.