6. Carefully lift the cover and put to one side.
Take care that the oil scavenge pipe
2
screwed to the underside of the cover is not bent in
the process.
7. Remove the old oil separator cartridge
13
and the gaskets
11
.
8. Clean all sealing surfaces, taking care that no foreign bodies (dirt particles) fall into the oil sep‐
arator tank.
Do not remove the metal clips!
The metal parts of the oil separator cartridge are electrically interconnected. The gaskets
11
are fitted with metal clips
12
that fulfil this requirement and provide an electrical path to the
oil separator tank and to the frame of the machine.
9. Insert the new oil separator cartridge with gaskets and screw down the cover.
10. Re-position the air pipe
5
.
11. Replace and tighten all loosened fittings.
12. Reconnect cables.
13. Check the oil level in the oil separator tank.
Cooling oil level too low: Replenish the cooling oil.
Maintenance of the control valve dirt trap must be carried out whenever the oil separator car‐
tridge is changed.
Further information Information on control valve dirt trap maintenance is given in chapter 10.5.5.
Making operational
1. Reconnect the negative battery terminal.
2. Close the access 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-hand access door.
7. After approximately 5 minutes: Check the cooling oil level.
Top off if necessary.
8. Visually inspect for leaks.
9. Close the access door.
10.5.7 Compressor air filter maintenance
Clean the filter according to the maintenance schedule or if the maintenance indicator shows this to
be necessary.
10 Maintenance
10.5 Compressor Maintenance
138
Operator Manual Screw Compressor
M114 SIGMA CONTROL SMART
No.: 901765 05 USE
