The long intervals between one maintenance and the other, the high
technology level reached in the screw compressor field, the accurate
arrangement of internal components subject to maintenance, and the
easy access to any internal component allow an easy, fast and
cost-effective maintenance.

..... but this is not enough .....

Oil level check, which is the most frequent verification, can be
carried out simply by outside the unit without needing to remove
any panel, just looking at the external sightglass.