10.9.3 Option dc
Fresh air filter maintenance
Before commencing work on the fresh air filter, read and understand the operating instructions for
pressurised air filters (fresh air filters) provided in chapter 13.8.
Using the fresh air filter without installed filter elements is not permitted!
Precondition The machine is shut down.
The machine is standing level.
The machine is fully vented, the pressure gauge reads 0 bar.
All compressed air consumers are disconnected and the air outlet valves are open.
Fig. 83 Fresh air filter maintenance
1
Fresh air filter
2
Lower housing
3
Lower filter element (high capacity element)
4
Body
5
Upper element (adsorption element)
6
Upper housing
7
Oil indicator
8
Condensate drain (with tap for manual drain‐
ing)
➤ Open the right-hand access door.
10.9.3.1 Draining condensate
Material Receptacle
Cleaning cloth
1. Place the receptacle below the fresh air filter condensate drain point.
2. Open the drain tap.
3. Close the door.
4. Switch the machine on and run it in IDLE mode for approx. 2 minutes.
The condensate collecting in the filter housings must be blown out.
5. Shut down the machine.
6. Open the right-hand access door.
7. Close the drain valve.
8. Carefully remove the receptacle.
9. Close the door.
Condensate must be stored in suitable containers and disposed of in accordance with local
environmental regulations.
10 Maintenance
10.9 Options
150
Service Manual Screw Compressor
M170 SIGMA CONTROL MOBIL
No.: 9_9425 01 E
Option dc
