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'AUTOMATIC POSITION CONTROL ARRANGEMENT TO ADJUST THE RELATIVE ANGLE BETWEEN THE HARVEST MATERIAL EJECTOR OF A COMBINE AND A TRAILED TROLLEY, ARTICULATED IN A TILTABLE WAY'.
'AUTOMATIC POSITION CONTROL ARRANGEMENT TO ADJUST THE RELATIVE ANGLE BETWEEN THE HARVEST MATERIAL EJECTOR OF A COMBINE AND A TRAILED TROLLEY, ARTICULATED IN A TILTABLE WAY'.
An automatic control system operates to control the spout position on a forage harvester as a function of the position of a crop-receiving wagon and as a function of the relative spout-wagon position. The system includes wagon and spout angle sensors and a variable gain error amplifier for generating an error signal representing the difference therebetween. The gain of the error amplifier is modified according to changes in the wagon position to provide a wagon position dependent amount of free play in the spout-wagon relative position.
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