10.9.2.2 Changing the filter elements
Material Spares
Filter wrench
Wrench
Cleaning cloths
Precondition Machine cooled down.
The «battery isolating switch» is off.
Ensure that the combination filter is not under pressure.
➤ Slowly open the prefilter and microfilter condensate drain valves.
Remaining pressure escapes.
Changing the filter elements
Do not touch the filter element foam jacket with bare fingers!
1. Unscrew and remove the drain hoses from the filter housings.
2. Unscrew the filter housing anti-clockwise.
3. Draw the filter element down and out.
4. Clean the filter head, housing and sealing surface with a lint-free cloth.
5. Check the housing gasket.
Change if damaged.
6. Insert a new filter element.
7. Screw on the filter housing clockwise.
8. Screw on the condensate drain hoses.
9. Close the drain valve.
10. Tighten the filter combination fittings.
11. Switch the «battery isolating switch» on.
12. Close the access door.
Further information Further information on changing elements can be found in the filter instructions in chapter 13.15.
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 combination filter housing and hose lines for leaks.
10 Maintenance
10.9 Options
144
Service Manual Screw Compressor
M135 SIGMA CONTROL MOBIL
No.: 9_6975 00 E