An agricultural harvester comprising: a baling chamber having a bale outlet and a panel at a rear section of the baling chamber, the panel movable between a closed and one or more open positions and obstructing the bale outlet in its closed position; at least one actuator (110,200) mechanically linked to the panel, the at least one actuator (110,200) capable of moving the panel between the closed and one or more open positions and having at least a first fluid opening (175, 202) on one end of the at least one actuator (110,200), the at least first fluid opening (175,202) feeds pressurized fluid into a hydraulic circuit; the hydraulic circuit comprising: a source of pressurized fluid in fluid communication with the first openings (175, 202) for supplying fluid to and returning fluid from the actuator (110,200) in the hydraulic circuit; a fluid stop valve in fluid communication with the hydraulic circuit; and a fluid controller that controls the flow of pressurized fluid through the fluid stop valve from the source of pressurized fluid or from the at least one actuator (110,200); the panel is movable from a closed position to one or more open positions in a first and a second hydraulic state; whereby, in the first hydraulic state, the stop valve is closed allowing pressurized fluid from the source of pressurized fluid to enter the first fluid opening (175,202) and to bypass the fluid stop valve; whereby, in the second hydraulic state, the fluid stop valve is open allowing pressurized fluid from the source of the pressurized fluid to flow through the open fluid stop valve and to return pressurized fluid to the source of the pressurized fluid thereby diverting a volume of pressurized fluid from entering the at least one first fluid opening (175,202) of the at least one actuator (110,200) and substantially reducing and/or stopping movement of the actuator (110,200) characterized in that the actuator (110, 200) further comprises a first switch and a second switch, the first switch and second switch each having a first state and a second state and being in operable connection to the fluid controller, wherein the panel is moved from the first to the second hydraulic state upon activation of the first switch from its first to second state. a baling chamber having a bale outlet and a panel at a rear section of the baling chamber, the panel movable between a closed and one or more open positions and obstructing the bale outlet in its closed position; at least one actuator (110,200) mechanically linked to the panel, the at least one actuator (110,200) capable of moving the panel between the closed and one or more open positions and having at least a first fluid opening (175, 202) on one end of the at least one actuator (110,200), the at least first fluid opening (175,202) feeds pressurized fluid into a hydraulic circuit; the hydraulic circuit comprising: a source of pressurized fluid in fluid communication with the first openings (175, 202) for supplying fluid to and returning fluid from the actuator (110,200) in the hydraulic circuit; a fluid stop valve in fluid communication with the hydraulic circuit; and a fluid controller that controls the flow of pressurized fluid through the fluid stop valve from the source of pressurized fluid or from the at least one actuator (110,200); at least a first fluid opening (175, 202) on one end of the at least one actuator (110,200), the at least first fluid opening (175,202) feeds pressurized fluid into a hydraulic circuit; the hydraulic circuit comprising: a source of pressurized fluid in fluid communication with the first openings (175, 202) for supplying fluid to and returning fluid from the actuator (110,200) in the hydraulic circuit; a fluid stop valve in fluid communication with the hydraulic circuit; and a fluid controller that controls the flow of pressurized fluid through the fluid stop valve from the source of pressurized fluid or from the at least one actuator (110,200); a source of pressurized fluid in fluid communication with the first openings (175, 202) for supplying fluid to and returning fluid from the actuator (110,200) in the hydraulic circuit; a fluid stop valve in fluid communication with the hydraulic circuit; and a fluid controller that controls the flow of pressurized fluid through the fluid stop valve from the source of pressurized fluid or from the at least one actuator (110,200); the panel is movable from a closed position to one or more open positions in a first and a second hydraulic state; whereby, in the first hydraulic state, the stop valve is closed allowing pressurized fluid from the source of pressurized fluid to enter the first fluid opening (175,202) and to bypass the fluid stop valve; whereby, in the second hydraulic state, the fluid stop valve is open allowing pressurized fluid from the source of the pressurized fluid to flow through the open fluid stop valve and to return pressurized fluid to the source of the pressurized fluid thereby diverting a volume of pressurized fluid from entering the at least one first fluid opening (175,202) of the at least one actuator (110,200) and substantially reducing and/or stopping movement of the actuator (110,200) characterized in that the actuator (110, 200) further comprises a first switch and a second switch, the first switch and second switch each having a first state and a second state and being in operable connection to the fluid controller, wherein the panel is moved from the first to the second hydraulic state upon activation of the first switch from its first to second state.