1. The filter should be equipped with electrical protection devices.

2. In the early stage of operation of the filter, check the anchor bolts at least once a day to prevent loosening.

3. When the motor rotation direction does not meet the requirements, just adjust the power phase sequence.

4. The motor should be well lubricated and add lithium-based grease (ZL-3) every two weeks or so. When refueling, add an appropriate amount of lithium-based grease through the oil cup. When using sealed bearings, the motor is not equipped with an oil cup.

5. After the machine has been running for 1500 hours, the bearings should be checked

6. When the machine is used again after being parked for a long time, the insulation resistance should be measured for 500 volt megaohms. When measured with a meter, it should be greater than 0.5 megohms.

7. The trademark of Guobao filter is the only trademark used exclusively by Yiyi Electric Co., Ltd. in mainland China.