Maintenance of power tools is critical to ensure their performance and longevity. Here are some common power tool maintenance items:

1. Cleaning: Regularly clean the exterior surfaces of power tools, using a brush or air pressure tool to remove accumulated dust and debris. For some tools with fans or vents, these areas also need to be cleaned to maintain heat dissipation.

2. Lubrication: Some moving parts of power tools may need to be lubricated to minimize friction and wear. Regularly check lubricated parts and add appropriate lubricant or grease as needed to keep them in good condition.

3. Maintenance of tools and abrasives: For tools and abrasives, regularly check for wear and tear and sharpen or replace damaged tools to ensure their effectiveness and safety in the workplace.

4. Inspection of power cords and plugs: Regularly inspect the power cords and plugs of power tools to ensure that they are in good condition and will not cause safety hazards due to breakage.

5. Adjustment and replacement of parts: When needed, adjust and replace the parts of the power tools. Especially some fragile parts, such as carbon brushes, trigger switches, etc., need to be checked regularly and adjusted or replaced according to the degree of wear and tear.

6. Storage: After use, power tools should be stored properly. Avoid placing the tool in a humid or hot environment, and also avoid collision and extrusion to avoid damaging the equipment.

Maintaining power tools can prolong their service life and keep their performance stable, so it is worth investing some time and effort to carry out regular inspection and maintenance. It is also important to take appropriate maintenance measures according to the instructions and requirements of different power tools.