A harvester comprising a cutting device, said cutting device comprising: a first and a second oppositely facing sidewalls (232a, 232b), wherein at least one of the oppositely facing sidewalls comprises a first slot; and a first loading system comprising: a first tray, positioned between the two oppositely facing sidewalls (232a, 232b) and movable in at least a first and a second position, the first tray comprising one or a plurality of knives and at least one cross member through which or upon one or a plurality of knives rest, wherein the first position of the at least first tray is an unloaded position and the second position of the at least first tray is a loaded position; and a first transverse member, positioned between and extending through the two oppositely facing sidewalls (232a, 232b), rotatable around a first linear axis transverse to the sidewalls (232a, 232b) and operably linked to a first connecting unit positioned at least partially within the at least first slot and mechanically linked to the first tray, characterized in that rotation of the first transverse member causes linear movement of the first tray, such that the first tray moves from the at least first position to the second position. a first and a second oppositely facing sidewalls (232a, 232b), wherein at least one of the oppositely facing sidewalls comprises a first slot; and a first loading system comprising: a first tray, positioned between the two oppositely facing sidewalls (232a, 232b) and movable in at least a first and a second position, the first tray comprising one or a plurality of knives and at least one cross member through which or upon one or a plurality of knives rest, wherein the first position of the at least first tray is an unloaded position and the second position of the at least first tray is a loaded position; and a first transverse member, positioned between and extending through the two oppositely facing sidewalls (232a, 232b), rotatable around a first linear axis transverse to the sidewalls (232a, 232b) and operably linked to a first connecting unit positioned at least partially within the at least first slot and mechanically linked to the first tray, characterized in that rotation of the first transverse member causes linear movement of the first tray, such that the first tray moves from the at least first position to the second position. a first tray, positioned between the two oppositely facing sidewalls (232a, 232b) and movable in at least a first and a second position, the first tray comprising one or a plurality of knives and at least one cross member through which or upon one or a plurality of knives rest, wherein the first position of the at least first tray is an unloaded position and the second position of the at least first tray is a loaded position; and a first transverse member, positioned between and extending through the two oppositely facing sidewalls (232a, 232b), rotatable around a first linear axis transverse to the sidewalls (232a, 232b) and operably linked to a first connecting unit positioned at least partially within the at least first slot and mechanically linked to the first tray, characterized in that rotation of the first transverse member causes linear movement of the first tray, such that the first tray moves from the at least first position to the second position.