Channel bale press for agricultural harvest crop and device and method for controlling operation of the bale press

A method of controlling operation of a bale press for agricultural harvest crop including a pressuring channel having at least a portion of one side thereof formed by a pivotal rail section;

• hydraulic means for applying pressure to the rail section;
• a plunger displaceable in the pressure channel for compressing a harvest crop therein;
• and a control device for controlling operation of the bale press, the method comprising the steps of:
• sensing loading of the plunger and inputting a loading signal into the control device as a first controlled variable;
• sensing pressure in the hydraulic means, which apply pressure to the rail section, and inputting a pressure signal into the control device as a second controlled variable;
• and
• changing the pressure applied to the rail section upon deviation of at least one of the first and second controlled variables from a respective set value.