1. Drain the compressor fluid from the sump, piping, filters, compressor unit and fluid cooler, preferably when the fluid is hot.

2. Change the fluid filter elements.

3. Partially fill the sump to 50% to 60% of the sump capacity with the flushing fluid.

4. Start the machine and operate at normal temperatures for a period of one hour. During this hour open and close the air discharge valve to allow the machine to cycle from full pressure to minimum pressure valve setting once every 15 minutes.

Note: You may see a foam level in the receiver increase above the bulls-eye sight glass. You should also see the sight glass “clear up” from any milky colour present when the machine was started.

CAUTION: DO NOT OPERATE THE MACHINE FOR MORE THAN 8 HOURS WITH FLUSH FLUID.

5. Monitor the fluid filter differential pressure (or inlet and outlet pressure if not equipped with differential gauges/detectors) and change when differential pressure exceeds 20 psi.

6. If foaming or “milkiness” is present, drain the sump, piping, coolers, compressor unit and filters while the fluid is still warm. Repeat Steps 3, through 5 as necessary until no foaming or “milkiness” is present.

7. When no foaming or “milkiness” is present, drain the sump, piping, coolers and compressor unit while they are still warm and replace the lubricant filters. Clean the main strainers and the oil return line strainers.

8. Partially fill (to 50% to 60% of the sump capacity) with the lubricant that will be maintained in the machine.

9. Start the machine and operate at normal temperature for approximately 2 hours.

10. Drain the sump, piping, compressor unit and cooler while still warm. Clean all strainers. Replace lube filters and separator elements.

11. Repeat Steps 8 through 10. Fill the compressor to the recommended level with the lubricant that will be maintained in the machine.

12. Restart and operate the compressor. Check the lubricant level and the operating temperature.

13. Take a sample of lubricant from the bearing filter after 24 hours of operation and check for contamination or residual 24KT fluid.

14. Now that the clean-up of lubricant conversion is complete, label the lube fill location with the correct lubricant name. Never mix or substitute lubricants.