Vacuum Pump Maintenance in Winter

  1. Don't use it in very cold environment.

  2. It can be preheated properly before use.

  3. Add bearing lubricating oil to the bearing body, oil level should be at the center line of the oil mark, and the lubricating oil should be replaced or replenished in time.

  4. Close the gate valve, outlet pressure gauge and inlet vacuum gauge of the water outlet pipeline.

  5. Jog the motor to see if the rotation direction of the motor is correct.

  6. If an abnormal sound is found in the vacuum pump, stop and check the cause immediately.

  7. Try to control the flow and head of the vacuum pump within the range indicated on the nameplate to ensure that the vacuum pump runs at the highest efficiency point in order to obtain the greatest energy-saving effect.

  8. Regularly adjust the packing gland to ensure that the leakage in the packing chamber is normal.

  9. If the vacuum pump is out of service for a long time, it is necessary to disassemble the pump completely, wipe off the water, coat the rotating parts and joints with grease and install them, and keep them properly.

  10. Regularly check the wear of the shaft sleeve, and replace it in time when the wear is large.

  11. When the vacuum pump is used in the cold winter season, after stopping, unscrew the water drain plug at the bottom of the pump body to drain the medium to prevent freezing and cracking.

  12. To stop using the vacuum pump, first close the gate valve and pressure gauge, and then stop the motor.

  13. During the first month of operation, change the lubricating oil after 100 hours, and then change the oil once every 500 hours thereafter.

  14. Turn on the motor. When the vacuum pump is running normally, open the outlet pressure gauge and the inlet vacuum pump, and gradually open the gate valve after the proper pressure is displayed. At the same time, check the motor load.

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