Cleaning the air filter:
1. Release the retaining clip. Lift off the cap and extract the element.
2. Carefully clean the inside of the housing, the cover and sealing faces with a damp cloth.
3. Cleaning the filter element:
■ Use dry compressed air (≤ 5 bar!) at an angle to blow dust from the element from inside to
outside until no further dust develops.
■ The blast pipe must be long enough to reach the bottom of the element.
■ The tip of the blast pipe must not touch the element.
■ Cleaning sealing faces.
4. Inspect the element carefully for any damage.
Damaged filter element: replace filter element.
5. Insert the cleaned or new filter element into the filter housing. Make sure it is properly in place
and sealed by its gaskets.
6. Replace the cap and secure with the clip.
Resetting the maintenance indicator:
➤ Repeatedly press the reset knob on the maintenance indicator.
The yellow piston within the indicator is reset and the maintenance indicator is ready for use
again.
➤ Close the doors.
10.5.8 Checking pressure relief valves
➤ Have pressure relief valves checked by KAESER Service in accordance with the maintenance
schedule.
10.6 Cleaning the coolers and radiator
The compressor oil cooler and engine coolant radiator are combined in a single cooler block.
The frequency of cleaning is mainly dependent on local operating conditions.
Heavy clogging of the cooler/radiator can cause oil overheating and overheating of the engine.
Check the cooler/radiator regularly for clogging.
Avoid creating dust eddies. Wear breathing protection if necessary.
Do not clean the cooler/radiator with a sharp instrument, otherwise it could be damaged.
A severely contaminated cooler/radiator should be cleaned by KAESER Service.
Material Compressed air
Water or steam jet blaster
Precondition Machine placed over a washing point equipped with an oil separator.
The machine is shut down.
Machine cooled down.
The machine is fully vented, the pressure gauge reads 0 bar.
All compressed air consumers are disconnected and the air outlet valves are open.
The «battery isolating switch» is off.
10 Maintenance
10.6 Cleaning the coolers and radiator
No.: 9_9425 01 E
Service Manual Screw Compressor
M170 SIGMA CONTROL MOBIL
137
