1. When the vacuum pump is running, the oil level should be 3/4 of the height of the oil window. If it is lower than the height of 1/2 oil window, the high-speed vacuum pump oil should be added in time. The oil level is too high or too low. The motor is unfavorable.
2. The machine should be placed horizontally, the environment should be well ventilated, there is no corrosive gas and large dust around.
3. The machine must be equipped with a grounding protection wire, and often check the connection point for good contact to ensure personal safety.
4. Before the machine works, the heating time and heating temperature must be set at the appropriate position. The principle of low to high should be mastered. Do not set the heat sealing time and temperature very long or high to avoid burning the electric parts or Teflon sealing varnish.
5. When the upper cover is pressed, the vacuum pump will start working. At this time, if the upper cover has not been sucked into place, the upper cover should be pressed down with a little force (except pneumatic type).
6. When the machine is working, it will emit abnormal noise, and the pointer of the vacuum gauge will not move. It indicates that the running direction of the vacuum pump may be wrong. The phase of the three-phase power supply may not be consistent with the factory phase. It should be shut down immediately, otherwise the vacuum pump will be easily damaged. In this case, you only need to change any two of the three-phase power supplies (the single-phase power supply does not have this phenomenon).
7. Always check the surface of the Teflon varnish on the seal for foreign matter and flatness to ensure the quality of the seal. If it is damaged, it should be replaced in time.
8. Check if the screws in all parts of the machine are loose, and whether the vacuum chamber moves left and right is flexible. The active part and the oil hole should be filled with an appropriate amount of lubricating oil.
9. In the event of an emergency when the machine is working, press the emergency stop button and the cover can be opened by itself.
10. After the machine is finished, the main power supply should be cut off.
