Piston press

A piston press comprising:

• a press piston positioned movably in a pressing channel between end positions;
• a feed channel;
• a feed rake gearbox comprising a first gearbox output and a second gearbox output;
• and
• a feed rake which, driven via the first gearbox output of the feed rake gearbox, is configured to move in the feed channel in order to operate in a plurality of operating modes including:
• in a first operating mode, execute a gathering stroke movement to compress harvested material in the feed channel;
• and in a second operating mode, a filling stroke movement which displaces the harvested material from the feed channel into the pressing channel;
• wherein the feed rake gearbox is configured to control the second gearbox output in order to:
• drive only the first gearbox output in one of the plurality of operating modes;
• and to distribute drive power to both the first gearbox output and the second gearbox output in another of the plurality of operating modes.