For reasons of increased safety against damage during transportation will be black bleed screw which is on the multifunction valve comes unscrewed and placed in a compartment on the lid of the compressor unit. Before the first start of the compressor simply screwed into the multifunction valve.
For the same reason it was also changed compressor unit input supply pin , which during transport is also located inside the lid of the compressor. When screwing on the compressor, do not use any tools. Screw him just using your fingers. At the bottom of the filling pin is o-ring to ensure a seal and It is not necessary to preload the threads. When using a wrench or pliers when tightening you could damage the moisture separator, so screwing filling pin only using your fingers!