Cleaning the dirt trap
1. Open the right-hand access door.
2. Unscrew the plug
4
and remove the strainer
6
from the dirt trap
2
.
3. Loosen the union nut
7
and detach the condensate drain hose
3
from the dirt trap
4. Unscrew the nozzle
8
from the dirt trap housing and clean.
5. Check the nozzle for function and wear.
Renew if non functional.
6. Clean the dirt trap housing, plug and sealing ring
5
.
7. Clean the strainer.
8. Check the strainer and sealing ring for function and wear.
Renew if non functional.
9. Replace the strainer in the dirt trap and screw in the plug.
10. Screw in the nozzle and re-attach the condensate drain hose.
11. Switch the «battery isolating switch» on.
12. Close the access door.
Function and leakage check
1. Start the machine and run for approximately 5 minutes.
2. Shut down the machine.
3. Wait until the machine has automatically vented.
Pressure gauge reads 0 bar.
4. Open the outlet valves.
5. Check the cyclone separator housing and hose line for leaks.
10.9.2 Option dd
Combination filter maintenance
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.
WARNING
Danger of injury from compressed air!
The combination filter is under pressure when operating; serious injury can result from loosening or
opening components under pressure.
➤ Make sure there is no electrical power present on the machine. Check that the pressure gauge
reads 0 bar.
➤ Depressurise the combination filter.
10 Maintenance
10.9 Options
142
Service Manual Screw Compressor
M135 SIGMA CONTROL MOBIL
No.: 9_6975 00 E
