Maintenance 6.3 Maintenance work compressor
Page 58 BOGE Operating instructions for C 16 N...C 30 N, C 16 F N...C 30 F N series screw compressors
Draining old oil
– Switch off compressor.
After approx 2 sec screw cap nut (5) on the bleed aperture of the solenoid
valve (the nut is located in the storage compartment of the switch cabinet).
Fig. 6.8: Solenoid valve on the suction controller with the cap nut screwed on
Fig. 6.9: Oil drain from oil compressed air receiver
– Remove oil drainage hose and replace blind plug with new copper seal.
– Remove the cap nut from the solenoid valve.
– Change oil filter (procedure as described above).
– Change oil separators (procedure as described above).
WARNING: Risk of injury!
Danger of burning due to hot oil!
Always wear safety gloves!
– Remove blind plug (1) at oil drain
(3) with the tap closed.
– Fit oil drainage hose (2). (The
hose is located on the machine)
– Place the oil drain hose into a
suitable container.
– Slowly open the stop valve.
The pressure cushion forces the
oil into the container.
– Once the compressed air/oil
receiver has been completely
drained, close the stop valve.
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