Changing the oil filter
1. WARNING!
Compressed air!
Compressed air and devices under pressure can injure or cause death if the contained energy
is released suddenly.
➤ De-pressurise all pressurised components and enclosures.
2. Unscrew the oil filter anti-clockwise, catch oil spillage and dispose of in accordance with envi‐
ronmental protection regulations.
3. Lightly oil the new filter's gasket.
4. Turn the oil filter clockwise by hand to tighten.
➤ Dispose of parts and materials contaminated with oil in accordance with environmental
protection regulations.
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 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: Check the cooling oil level and top up if necessary.
5. Switch off the machine and check visually for leaks.
10.17 Changing the oil separator cartridge
The oil separator cartridge cannot be cleaned.
The life of the oil separator cartridge is influenced by:
■ contamination in the air drawn into the compressor,
■ and adherence to the changing intervals for:
─ Cooling oil
─ Oil filter
─ Air filter
The machine must be isolated from the compressed air network and completely vented be‐
fore undertaking any work on the pressure system.
Material Spares
Cleaning cloth
Precondition The power supply isolating device is switched off,
the device is locked off,
the absence of any voltage has been verified.
The machine is fully vented,
the pressure gauge on the oil separator tank reads 0 bar.
10 Maintenance
10.17 Changing the oil separator cartridge
78
Service Manual Screw Compressor
ASK T SIGMA CONTROL BASIC 9_5717 20 E
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