A sensor input is detected on a cotton harvester. A performance characteristic value is identified based upon the detected sensor input. A speed control system controls cotton harvester drum speed and spindle speed, automatically, and separately from the ground speed of the cotton harvester, to improve the performance characteristic value, in a closed-loop fashion.

A sensor input is detected on a cotton harvester. A performance characteristic value is identified based upon the detected sensor input. A speed control system controls cotton harvester drum speed and spindle speed, automatically, and separately from the ground speed of the cotton harvester, to improve the performance characteristic value, in a closed-loop fashion.

An agricultural vehicle for picking or harvesting a product includes a motor, a plurality of tires, a transmission mating the motor to the plurality of tires, an accumulator operable to store the product, a module builder operable to receive the product from the accumulator, and a frame supporting the accumulator and the module builder. The frame defines a hatch through which an operator is capable of accessing the motor and/or the transmission. The agricultural vehicle is operable to transition between a first state and a second state. In the first state, the module builder and the accumulator prohibit access through the hatch. In the second state, the module builder and the accumulator are rotated relative to the frame and provide access through the hatch.

An agricultural vehicle for picking or harvesting a product includes a motor, a plurality of tires, a transmission mating the motor to the plurality of tires, an accumulator operable to store the product, a module builder operable to receive the product from the accumulator, and a frame supporting the accumulator and the module builder. The frame defines a hatch through which an operator is capable of accessing the motor and/or the transmission. The agricultural vehicle is operable to transition between a first state and a second state. In the first state, the module builder and the accumulator prohibit access through the hatch. In the second state, the module builder and the accumulator are rotated relative to the frame and provide access through the hatch.

A row unit for an agricultural machine includes a frame, a floor, and a subassembly discrete from the frame and the floor. The subassembly is configured to be coupled to the floor and the frame and positioned within the frame during operation of the row unit. The subassembly includes a cam-plate including a top side, a bottom side, and a cam-track defined in the bottom side. The subassembly also includes a drum; a plurality of picker-bars coupled to the drum, and a linkage assembly including a first end coupled to the picker-bar and a second end coupled to a roller positioned in the cam-track. The subassembly is assembled prior to being positioned in the frame.

A row unit for an agricultural machine includes a frame, a floor, and a subassembly discrete from the frame and the floor. The subassembly is configured to be coupled to the floor and the frame and positioned within the frame during operation of the row unit. The subassembly includes a cam-plate including a top side, a bottom side, and a cam-track defined in the bottom side. The subassembly also includes a drum; a plurality of picker-bars coupled to the drum, and a linkage assembly including a first end coupled to the picker-bar and a second end coupled to a roller positioned in the cam-track. The subassembly is assembled prior to being positioned in the frame.

A spindle assembly includes a spindle nut having a cylindrically shaped bore and a threaded portion that engages a threaded opening in a cotton picker bar. The spindle assembly further includes a first friction reducing element disposed in the cylindrically shaped bore, a cotton picking member. The cotton picking member includes a barbed end, an engaging end, and a cylindrically shaped shaft located between the barbed end and the engaging end. A drive member includes a receiving end that receives the engaging end of the cotton-picking member and a geared end that engages a gear on a driveshaft in the cotton picker bar. The cylindrically shaped shaft includes a surface rotatably supported within the first friction reducing element.

A spindle assembly includes a spindle nut having a cylindrically shaped bore and a threaded portion that engages a threaded opening in a cotton picker bar. The spindle assembly further includes a first friction reducing element disposed in the cylindrically shaped bore, a cotton picking member. The cotton picking member includes a barbed end, an engaging end, and a cylindrically shaped shaft located between the barbed end and the engaging end. A drive member includes a receiving end that receives the engaging end of the cotton-picking member and a geared end that engages a gear on a driveshaft in the cotton picker bar. The cylindrically shaped shaft includes a surface rotatably supported within the first friction reducing element.

A row unit for an agricultural machine includes a frame, a floor, and a subassembly discrete from the frame and the floor. The subassembly is configured to be coupled to the floor and the frame and positioned within the frame during operation of the row unit. The subassembly includes a cam-plate including a top side, a bottom side, and a cam-track defined in the bottom side. The subassembly also includes a drum; a plurality of picker-bars coupled to the drum, and a linkage assembly including a first end coupled to the picker-bar and a second end coupled to a roller positioned in the cam-track. The subassembly is assembled prior to being positioned in the frame.

A row unit for an agricultural machine includes a frame, a floor, and a subassembly discrete from the frame and the floor. The subassembly is configured to be coupled to the floor and the frame and positioned within the frame during operation of the row unit. The subassembly includes a cam-plate including a top side, a bottom side, and a cam-track defined in the bottom side. The subassembly also includes a drum; a plurality of picker-bars coupled to the drum, and a linkage assembly including a first end coupled to the picker-bar and a second end coupled to a roller positioned in the cam-track. The subassembly is assembled prior to being positioned in the frame.