How to maintain the vacuum pump of vacuum coating machine daily is a problem of concern to everyone. Today, we have compiled a vacuum editor to sort out some maintenance precautions for everyone, hoping to help you:
1、 Regularly inspect the pipeline and joints of the rotary vane vacuum unit for looseness. Rotate the vacuum pump by hand to see if it is flexible.
2、 Regularly check the wear of the shaft sleeve, and replace it in a timely manner after significant wear.

3、 To ensure the normal operation of the vacuum pump, it is necessary to regularly check the oil quality. If the oil deteriorates, it should be replaced with new oil in a timely manner. The oil change period should be considered based on actual usage conditions and whether the performance requirements can be met, and it is at the discretion of the user. When removing clean and dry gas from a new stainless steel pump, it is recommended to change the oil every 100 hours of operation. After no ferrous metal powder is visible in the oil, the oil change period can be appropriately extended in the future.

4、 Start the motor, and when the vacuum pump is running normally, open the outlet pressure gauge and slide valve vacuum pump. After the appropriate pressure is displayed, gradually open the gate valve and check the motor load condition.
5、 Add bearing lubricating oil into the bearing body and observe that the oil level should be at the centerline of the oil mark. Therefore, it is necessary to regularly check the oil level position. If it does not meet the requirements, it must be adjusted to meet the requirements. The lubricating oil should be replaced or replenished in a timely manner.
6、 When the vacuum pump is to be stopped, first close the gate valve and pressure gauge, and then stop the motor. If the vacuum pump is not in use for a long time, it is necessary to disassemble all the pumps, wipe off the water, inject new oil into the rotating parts and joints as specified, and place them in a dry place for proper storage.
7、 Try to control the flow rate and head of the vacuum pump within the range indicated on the label to ensure that the vacuum pump operates at the highest efficiency point, in order to achieve the maximum energy-saving effect.
8、 In general, stainless steel pumps should be repaired after 2000 hours of operation, to check the aging degree of rubber seals, to check whether the exhaust valve plate is cracked, and to clean any dirt that has settled on the valve plate and exhaust valve seat.
9、 Close the gate valve, outlet pressure gauge, and inlet vacuum gauge of the water outlet pipeline.
10、 Unscrew the water inlet plug of the vacuum pump body and inject water or slurry.
11、 During the operation of the vacuum pump of vacuum coating machine, the bearing temperature shall not be 30 ℃ higher than the ambient temperature, and the absolute temperature shall not be higher than 60 ℃. Press ZG-4 calcium based grease into the roller bearing chamber to fill 2/3 of the bearing chamber space. Bearings that work normally should be lubricated 3-4 times a year, cleaned at least once a year, and replaced with all lubricating grease.
12、 Regularly adjust the packing gland to ensure that there is normal dripping in the packing chamber, and it is advisable to let out droplets.