During the use of the oil-free screw vacuum pump, attention should be paid to inspection, operation and regular maintenance to ensure that the oil-free screw vacuum pump can work normally.

1. oil free screw vacuum pump inspection:
1. Check the screw pump, pipeline and joint for looseness. Turn the screw pump by hand to see if the screw pump is flexible.
2. Add bearing lubrication oil to the screw pump bearing body, observe the oil level should be at the center line of the oil mark, and the lubricating oil should be replaced or supplemented in time.
3. Inching screw pump motor, try to see if the motor steering is correct.
4. Regularly check the wear of the screw pump shaft sleeve, and replace it in time after the wear is large.
5. Regularly adjust the screw pump packing gland to keep the dripping in the packing room normal (preferably dripping out).

2. oil free screw vacuum pump operation:
1. Unscrew the water diversion screw plug of the screw pump body, and pour the water (or slurry).
2. close the gate valve of the screw pump outlet pipe, the outlet pressure gauge and the inlet vacuum gauge.
3. Start the screw pump motor. When the screw pump is running normally, open the outlet pressure gauge and the inlet vacuum pump. After the appropriate pressure is displayed, gradually open the gate valve and check the motor load.
4. Try to control the flow and head of the screw pump within the range indicated on the sign_to keep the screw pump running at the mailbox rate point to obtain the maximum energy saving effect.
5. During the operation of the screw pump, the bearing temperature cannot exceed the ambient temperature of 35C, and the high temperature must not exceed 80C.
6. If the screw pump is found to have abnormal sound, stop immediately to check the cause.
7. When the screw pump is to be stopped, first close the gate valve and pressure gauge, and then stop the motor.

3. oil-free screw vacuum pump maintenance
1. screw pump in the first month of work, after 100 hours to replace the lubricating oil, after every 500 hours, oil change once.
2. When the screw pump is used in the cold winter season, after parking, it is necessary to unscrew the drain plug at the lower part of the pump body to drain the medium. Prevent frost cracking.
3. If the screw pump is stopped for a long time, it is necessary to disassemble the screw pump, wipe off the water, coat the rotating parts and joints with grease, and store them properly.
Screw pump in the use of the process of the problem is a very troublesome thing, in order to better protect it, it is recommended that users understand its maintenance and maintenance, so that it can not only make it work, but also extend its use period.

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