8. Take out the old cartridge
13
and sealing rings
11
.
9. Clean all sealing surfaces, taking care that no foreign bodies (dirt particles) fall into the oil sep‐
arator tank.
10. Insert the new oil separator cartridge with sealing rings and screw down the cover.
11. Secure the air pipe
5
with a new self-locking nut.
➤ Follow the instructions in chapter 10.5.9 concerning flexible pipe connections.
12. Position the guard plate
15
.
13. Replace and tighten all loosened fittings.
14. Reconnect cables.
15. Check the oil level in the oil separator tank.
Top up if necessary.
The dirt trap at the oil separator receptacle must also be serviced, whenever the oil separator
cartridge is changed.
Further information Information on control valve dirt trap maintenance is given in chapter 10.5.5.
Making operational
1. Close the service cover of the oil separatur tank on the roof.
2. Switch the «battery isolating switch» on.
3. Close the door.
Dispose of old parts and contaminated materials according to environmental regulations.
Starting the machine and performing a test run:
1. Start the machine and run in IDLE until the operating temperature is reached.
2. Close the outlet valves.
3. Shut down the machine.
4. Wait until the machine has automatically vented.
Pressure gauge reads 0 psig!
5. Open the outlet valves.
6. Open the right-rear door.
7. Check the oil level after about 5 minutes.
Top up if necessary.
8. Carry out a visual check for leaks.
9. Close the door.
10.5.7 Compressor air filter maintenance
Clean the air filter as per the maintenance table but at the latest when the controller displays the
corresponding maintenance message.
Renew the air filter element after 2 years or after it has been cleaned 5 times.
10 Maintenance
10.5 Compressor Maintenance
No.: 9_9570 07 USE
Operator Manual Screw Compressor
M250 SIGMA CONTROL MOBIL
151