2. Unscrew the fitting 1 and carefully put the parts to one side, then pull out the copper pipe from
the dirt trap 2 .
3. Loosen the fitting 3 and disconnect the air pipe 4 completely if necessary.
4. Unscrew the tank cover fixing screws 5 .
5. Use the nut 6 to lift the cover and swing it to the side.
6. Take out the old oil separator cartridge 8 together with the gaskets 7 and dispose of accord‐
ing to environmental protection regulations.
7. Clean all sealing faces.
8. Insert the new cartridge and gaskets.
9. Swing the cover over the tank and lower with the nut 6 until it rests on the tank rim.
The nut 6 becomes free and can be turned by hand when the cover is resting on the tank.
10. Screw the cover with nuts 5 .
11. Renew the O-ring and strainer in the dirt trap 2 .
12. Secure the air pipe 4 with a new self-locking nut.
➤ Follow the instructions in chapter 10.19 concerning flexible pipe connections.
13. Replace and tighten all fittings.
➤ Dispose of parts and materials contaminated with oil in accordance with environmental
protection regulations.
Closing the enclosure
Fig. 36 Open the enclosure (oil separator cartridge changing)
1 Access panel
2 Cover plate
1. Fit the cover plate 2 .
2. Replace enclosure panels 1 .
Starting the machine and carrying out a trial run
1. Close all access doors; replace and secure all removable panels.
2. Open the user's shut-off valve at the inlet and outlet ends.
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
ESD_2C_10357405_10–LIN_00 E
Service Manual Screw Compressor
ESD 442/14 bar (abs) SFC SIGMA CONTROL 2
77
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