1. Turn off the air compressor, close the air pressure outlet, and open the drain valve to confirm that there is no pressure in the system.
2. Disconnect the pipeline above the oil and gas tank, and at the same time remove the pipeline from the outlet of the pressure maintaining valve to the cooler.
3. Remove the oil return line.
4. Remove the fixing bolts on the upper cover of the oil and gas tank, and remove the upper cover of the gas tank.
5. Remove the oil and gas separator and replace it with a new one
6. Install in the reverse order of removal
