10.9.3.1 Drain condensate
Material Oil receptacle
Cleaning cloths
1. Place the receptacle under the combination filter hose lines.
2. Open the pre-filter and micro-filter condensate drain shut off valves.
3. Close the door.
4. Start up the machine and run in IDLE.
The condensate collecting in the filter housings is blown out.
5. Stop the compressor as soon as air escapes.
6. Open the left-hand door.
7. Close the shut-off valve.
8. Close the door.
Condensate must be stored in suitable containers and disposed of in accordance with local
environmental regulations.
10.9.3.2 Changing the filter elements
The pre-filter and microfilter contain different elements and these must be changed as a pair. Note
location!
Using the combination filter without an element installed is not permitted.
Handle new filter elements only with clean fabric gloves. Do not touch the new filter elements
with bare fingers – Contamination risk!
Material Spare parts
Filter wrench
Wrench
Cleaning cloths
Clean fabric gloves
Precondition The machine has cooled down.
The «battery isolating switch» is turned off.
Ensure that the combination filter is not under pressure.
➤ Slowly open the pre-filter and micro-filter condensate drain shut off valves.
Remaining pressure escapes.
Gaining access to the filter housing
➤ Loosen the screw fitting of the condensate drain hoses from the filter housings of pre-filter and
micro-filter and remove the drain hoses.
Changing the prefilter element
1. Unscrew the filter housing counter-clockwise.
2. Draw the filter element down and out.
3. Clean the filter head, housing and sealing surface with a lint-free cloth.
10 Maintenance
10.9 Maintenance for Optional Items
156
Operator Manual Screw Compressor
M114 SIGMA CONTROL SMART
No.: 901765 05 USE
