4.2 Filter change
4.2.1 Coarse dust filter
Time interval: if required by the user, monthly at the latest.
1. Opening the coarse dust filter cover
on the back of the Kröber
2. Pull out the old filter.
3. Dispose of the old filter.
4. Threading the new filter fleece.
5. Reinsert the filter cover into the back
of the Kröber O2.
4.2.2 Device input filter
Time interval: semi-annually by the technician, after 5000 h at the latest.
The unit inlet filter is located behind the service flap and is intended to protect the
compressor from contamination.