■ Using the engine without an air filter element is not permitted!
■ Do not use an air filter element with damaged folds or gasket.
■ The use of an unsuitable air filter can permit dirt to ingress the engine and cause prema‐
ture wear and damage.
Material Compressed air for blowing out
Spare parts (as required)
Cleaning cloth
Precondition The machine is shut down.
The machine is fully vented, the pressure gauge reads 0 psig.
The machine is cooled down.
All compressed air consumers are disconnected and the air outlet valves are open.
Damaged filter element.
Wear can occur in the engine from the intake of any contaminated air.
➤ Do not try to clean the filter element by striking or knocking it.
➤ Do not wash the filter element.
➤ Raise the cover.
Checking contamination of the air filter
Air filter maintenance is necessary when the yellow piston inside the maintenance indicator rea‐
ches the red zone.
Fig. 29 Maintenance indicator
1
Maintenance indicator
2
Indicator piston
3
Red zone indicator scale
4
Reset knob
➤ Check the air filter maintenance indicator.
If the yellow piston reaches the red zone, clean or renew the filter element.
Cleaning the air filter:
The dust evacuator valve must be at the bottom. The dust evacuation valve
2
is on the filter cap.
10 Maintenance
10.3 Drive engine maintenance
98
Operator Manual Screw Compressor
MOBILAIR M27
No.: 9_9547 13 USE
