9. Make sure that the Sauer-Compressor is depressurised. To do this,
check the pressure displays for the compression stages.
If there is any residual pressure, check whether the solenoid drain
valves are open.
10. Loosen the union of the crankcase vent condensate separator from the
filter flange of compression stage 1.
11. Using the oil injector, spray around 150 ml preservation oil into the filter
flange of compression stage 1.
12. Tighten the union of the crankcase vent condensate separator to the
filter flange of compression stage 1.
13. Unscrew the plug on the pressure line compression stage 2 (suction
side).
14. Using the oil injector, spray around 100 ml preservation oil into the
pressure line for compression stage 2.
15. Screw in the plug on the pressure line compression stage 2 (suction
side).
16. Unscrew the plug on the pressure line compression stage 3 (suction
side).
17. Using the oil injector, spray around 70 ml preservation oil into the com-
pression chamber for compression stage 3.
18. Screw in the plug on the pressure line compression stage 3 (suction
side).
19. Unscrew the plug on the pressure line compression stage 4 (suction
side).
20. Using the oil injector, spray around 20 ml preservation oil into the com-
pression chamber for compression stage 4.
21. Screw in the plug on the pressure line compression stage 4 (suction
side).
22. Run the compressor for around 15 seconds with the solenoid drain
valves and the pressure line open.
ð
The preservation oil spreads through the compressor unit.
23. Turn off the Sauer-Compressor and secure against being turned on
again.
Switch off the main switch to shut off the power to the Sauer-Com-
pressor and the compressor control.
24. Reconnect the power supply for the solenoid drain valves to the com-
pressor control.
25.
Drain the preservation oil.
Ä
Chapter 4.1.1 ‘Changing the oil and
cleaning the oil strainer’ on page 19
Ensure that the oil is disposed of or treated in an environmentally
sound manner.
26.
Drain the cooling water.
Ä
Chapter 3.5 ‘Draining and refilling cooling
water’ on page 13
27. Attach a warning sign to prevent the preserved compressor from being
started accidentally.
62 | WP5000 Basic WA 41013675 en GB 20190916
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