Replacing the safety element:
These tasks must be carried out every third time the air filter is maintained.
1. Remove the safety element and dispose of it.
2. Use duct tape to seal off the engine air intake port to prevent ingress of dirt.
3. Remove the tape after the filter housing has been cleaned.
4. Fit the new safety element.
5. Insert the cleaned or new filter element into the filter housing.
6. Check that the filter element and safety element are inserted correctly and the seals can func‐
tion properly.
Resetting the maintenance indicator:
➤ Press the reset button on the maintenance indicator repeatedly.
The yellow piston inside the indicator is reset and the maintenance indicator is ready for use
again.
Preparing for operation:
1. Close the service cover on the roof.
2. Install the panel.
Dispose of old parts and contaminated materials in accordance with environmental protection
regulations.
10.4.3 Fuel system maintenance
Make sure no dirt enters the fuel system during maintenance. Clean components and their sur‐
roundings before dismounting.
Material Spare parts
Oil receptacle
Cleaning cloths
Precondition The machine is switched off.
The machine is standing level.
The machine is fully vented, the pressure gauge reads 0 psig.
The machine has cooled down.
All compressed air consumers are disconnected and the air outlet valves are open.
The «battery isolating switch» is turned off.
Danger of fire from spontaneous ignition of fuel!
Serious injury or death could result from the ignition and combustion of fuel.
➤ Allow no open flames or sparks at the place of use.
➤ Ensure that the maximum ambient temperature is not exceeded at the place of use.
➤ Stop the engine.
➤ Wipe up escaped fuel.
➤ Keep fuel away from hot machine parts.
10 Maintenance
10.4 Drive engine maintenance
112
Operator Manual Portable Rotary Screw Compressor
MOBILAIR M58utility SIGMA CONTROL SMART
No.: 901779 08 USE