Draining the oil from the airend
Fig. 34 Changing the cooling oil, airend
1 Compressed air outlet on airend
2 Hose coupling (oil drainage)
3 Shut-off valve
4 Safety screen
5 Coupling
1. Have an oil receptacle ready.
2. With the shut-off valve closed, insert the male hose fitting 6 (Fig. 32) into the hose coupling 2 .
3. Place the other end of the maintenance hose in the oil receptacle and secure it in place.
4. Open shut-off valves 3 and 7 (Fig. 32)
5. Remove the coupling safety screen 4 and turn the coupling 5 by hand at least five revolutions
until all the oil has run out.
6. Fit the safety screen again.
7. Close the shut-off valve 3 and unplug the male hose fitting.
Result The cooling oil is drained from the airend.
A small amount of cooling oil may flow back into the oil cooler and oil separator tank as a result of
turning the coupling.
Remove this by repeating the steps for draining oil from the separator tank and oil cooler.
10 Maintenance
10.16 Changing the cooling oil
9_5708 08 USE
Service Manual Screw Compressor
BSD
81
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