With the adjustment lever the mode of pod machine is selected. For making coffee the lever must be set to the far left on the corresponding mark, the pad is the same as pressing in the pad cassette and around sealed over the levers. Some Padsorten the lever is difficult in the required operating position, especially if you have not flattened the pad before. So with us was after about 2.5 years of levers (plastic part) canceled (happens with many others, probably: See eg Ebay) The same thing happened to us at a used Petra KM 40 pad machine. The problem is, since the end of 2011 (acquisition of Petra by WMF?) Is the lever no longer supplied as a spare part for the KM 40 and KM 42 Padmschinen (costs previously 6.66 euros for levers + collet holder), because some customer problems mE usually had very simple repair that I have conducted myself in our KM 42.17. Now one would have to send the device and not less than 55 euros Rep.pauschale pay (According to the Petra service of termination of the adjusting lever is incidentally also not covered under warranty). Because of this annoying and incomprehensible service deterioration there is only one point.