2. Unscrew the fitting 20 and carefully put the parts to one side, then pull out the copper pipe at
item 15 .
3. Unscrew the nut 19 and turn the air pipe 16 to one side.
4. Remove the cover fixing screws 17 and carefully remove the cover 14 .
5. Take out the old oil separator cartridge 23 together with the gaskets 21 and dispose of ac‐
cording to environmental protection regulations.
6. Clean all sealing faces.
7. Insert the new oil separator cartridge with gaskets and refix the cover.
8. Renew the O-ring and strainer in the dirt trap 15 .
➤ Make sure the ball 30 is properly seated.
The ball prevents cooling oil being pressed into the separator cartridge.
9. Attach the air pipe to the cover 14 with a new, self-locking nut.
10. Replace and tighten all fittings.
➤ Dispose of parts and materials contaminated with oil in accordance with environmental
protection regulations.
Start the machine and carry out a trial run
1. Close all access doors, replace and secure all removable panels.
2. Open the user's shut-off valve between the machine and the air distribution network.
3. Switch on the power supply and reset the maintenance interval counter.
4. After approx. 10 minutes of operation: Switch off the machine and check visually for leaks.
10 Maintenance
10.18 Changing the oil separator cartridge
9_5875 33 USE
Operator Manual Screw Compressor
SM Tri-Voltage, SIGMA CONTROL 2
75
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