Oil change steps for screw compressors

1. Turn on the machine and run it to normal temperature for one hour;

2. Shut down;

3. Drain the oil in the oil tank, cooler and all filters;

4. Add the newly replaced oil to the very small amount of oil required for operation (eg: 1/2 volume);

5. Power on and run to normal operating temperature for one hour. During the hour, the exhaust valve was opened and closed every 15 minutes to cycle the machine through the high pressure and very low pressure valve settings. Foam increase available on bullseye viewing window. You will also see the viewing window change from opacity to clear;

6. Shut down;

7. Drain the oil in the oil tank, cooler and all filters;

8. Add the newly replaced oil to 1/2 volume;

9. Repeat step 5;

10. Shut down;

11. Drain the oil from the entire machine, including the cooler, oil tank and filter. Remove pipe if necessary to remove lower oil. Clean strainer; replace separator and all oil filters. Check that the inlet filter is covered with contaminated oil and replace if necessary;

12. Add the oil recommended to be replaced to the minimum oil volume required for operation (eg: 1/2 volume);

13. Turn on the machine and run it to normal temperature for 15 minutes;

14. Shut down and drain the oil in the machine. Empty the filter and screen, but do not replace;

15. Add the oil you recommend to the machine to the normal oil level;

16. Restart the machine and pay attention to the oil level. When the machine is operating, there will be about 1/2 oil in the observation window;

17. The foam can be dispersed to the oil level within 2 minutes after shutdown and no oil flows out from the drain valve.

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