Fig. 44 Cleaning the filter element
1
Compressed air gun with blast pipe (bent to approx. 90° at the end)
2
Filter element
1. Release the retaining clip. Remove the filter cap and take out the filter element.
2. Carefully clean the inside of the filter housing, the cap and sealing faces with a damp cloth.
3. Cleaning the filter element:
■ Use dry compressed air (≤ 30 psi!) at an angle to blow dust from the element from inside to
outside until no more dust appears.
■ The blast pipe must be long enough to reach the bottom of the element.
■ The tip of the blast pipe must not touch the filter element.
■ Clean the sealing faces.
4. Inspect the element carefully for any damage.
If the filter element is damaged: Replace the filter element.
5. Insert the cleaned or new filter element into the filter housing. Make sure it is properly secured
and its gaskets are sealed.
6. Replace the cap and secure with the clips.
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.
➤ Close the doors.
Dispose of old parts and contaminated materials in accordance with environmental regula‐
tions.
10 Maintenance
10.4 Drive engine maintenance
No.: 901783 08 USE
Operator Manual Portable Rotary Screw Compressor
MOBILAIR M82 SIGMA CONTROL SMART
127