1. Clean the air filter The air nozzle filter, which is located between the air nozzle of the vacuum packaging machine and the exhaust pump, may have some foreign objects (a small amount of liquid, powder, and particles) that have fallen into the cover. Check and clean the cover every day. 2. Remove the cover If too much liquid seeps into the vacuum packaging machine, it will overflow from the filter tube and fall into the vacuum pump, which will damage the vacuum pump. It is necessary to prevent liquid from entering the vacuum pump. 3. Clean the inlet and outlet air filters The vacuum pump draws in outside air through the air filter. If the cover is stained with dust and dirt, the performance of the vacuum pump will not be ideal. Therefore, clean the cover of the air filter once a week. 4. Clean the air tube You can easily remove the tube by pressing the release ring while pushing the tube. The above are the maintenance and upkeep procedures of the external vacuum packaging machine summarized by YUPACK for you. If you have any other questions about the vacuum machine, please feel free to call the marketing center of Qingdao YUPACK. We will wholeheartedly serve you!