Agricultural work vehicle having a device interface and an assembly for the remote control of the device interface, wherein the assembly for the remote control of the device interface comprises the following: a control unit (46, 68, 70) of the work vehicle, which control unit (46, 68, 70) has a controlling connection to an extraneous-force-activated actuator (26, 28, 42) for adjusting the position of the device interface, and a portable computer with input means and a processor which has a wireless communication connection to the control unit (46, 68, 70) and into which software is downloaded which permits control of the actuator (26, 28, 42) by means of the input means via the processor and the control unit (46, 68, 70), characterized in that the remote control of the device interface of the work vehicle is possible only if at least one of the following conditions is satisfied: the computer and the work vehicle are paired by exchanging a pairing code, the computer and the work vehicle are successfully authorized with respect to one another by close-range communication and/or inputs by the operator into the computer and/or a work-vehicle-side terminal, the work vehicle is in the stationary state, the work vehicle has received a heartbeat message from the computer in a prescribed time, and there is no general time sequence (timeout) of the communication between computer and work vehicle, and in that the computer and the work vehicle can be switched between a first state, in which remote control is not possible, and a second state in which remote control is possible, and a changeover from the first state into a mode (510, 512) of the second state in which remote control of the device interface is possible by activating a touch-sensitive display apparatus or keys of the computer, is possible only in the stationary state of the work vehicle by exchanging the pair code and, if appropriate, authorization and after selection of the device interface to be controlled, while, after a general time sequence and/or a failure of a heartbeat message to occur and/or a moving work vehicle, there is an automatic changeover into the first state from which a changeover into said mode (510, 512) of the second state is possible only through a renewed exchange of a pairing code and, if appropriate, authorization and after renewed selection of the device interface to be controlled. a control unit (46, 68, 70) of the work vehicle, which control unit (46, 68, 70) has a controlling connection to an extraneous-force-activated actuator (26, 28, 42) for adjusting the position of the device interface, and a portable computer with input means and a processor which has a wireless communication connection to the control unit (46, 68, 70) and into which software is downloaded which permits control of the actuator (26, 28, 42) by means of the input means via the processor and the control unit (46, 68, 70), characterized in that the remote control of the device interface of the work vehicle is possible only if at least one of the following conditions is satisfied: the computer and the work vehicle are paired by exchanging a pairing code, the computer and the work vehicle are successfully authorized with respect to one another by close-range communication and/or inputs by the operator into the computer and/or a work-vehicle-side terminal, the work vehicle is in the stationary state, the work vehicle has received a heartbeat message from the computer in a prescribed time, and there is no general time sequence (timeout) of the communication between computer and work vehicle, and in that the computer and the work vehicle can be switched between a first state, in which remote control is not possible, and a second state in which remote control is possible, and a changeover from the first state into a mode (510, 512) of the second state in which remote control of the device interface is possible by activating a touch-sensitive display apparatus or keys of the computer, is possible only in the stationary state of the work vehicle by exchanging the pair code and, if appropriate, authorization and after selection of the device interface to be controlled, while, after a general time sequence and/or a failure of a heartbeat message to occur and/or a moving work vehicle, there is an automatic changeover into the first state from which a changeover into said mode (510, 512) of the second state is possible only through a renewed exchange of a pairing code and, if appropriate, authorization and after renewed selection of the device interface to be controlled.