Method for operating a manufacturing facility for producing a product, in particular a gear motor, out of a first component, in particular an electric motor, and a second, fixedly mounted component, in particular a gearing, the manufacturing facility comprising a robot arm arranged on a vehicle that is movable in particular on a floor of the manufacturing facility, a sensor ring being connected to the robot arm for guiding, in a manner requiring little force, a first component being held by the robot arm, characterised in that a first, second or third operating mode is selected using an input means such that, depending on the actuation of the input means, - in a first method step, in the first operating mode, the vehicle is operated autonomously together with the robot arm, in particular is controlled by the controller, - in a second method step following the first method step, in the second operating mode, a human-guided operation is carried out such that the target position specified for the drive of the vehicle is altered depending on the sensor signals from the sensor ring, constant values being specified as the respective target positions of each drive of the robot arm, the actual positions of the respective drives of the robot arm when the input means is actuated for selecting the second operating mode being specified as the target positions of the respective drives of the robot arm, - in a third method step following the second method step, in the third operating mode, a human-guided operation is carried out such that the respective target positions of each drive of the robot arm are altered depending on the sensor signals from the sensor ring, a brake of the vehicle being applied or a constant value being specified as the target position for the drive of the vehicle, the actual position of the drive of the vehicle when the input means is actuated for selecting the third operating mode being specified as the target position of the drive of the vehicle, the first component, which is being held, being guided towards the fixedly mounted second component by means of the robot arm and being centred thereon without any substantial force being exerted, in order to connect, in particular screw-connect, the first component to the second component. the manufacturing facility comprising a robot arm arranged on a vehicle that is movable in particular on a floor of the manufacturing facility, a sensor ring being connected to the robot arm for guiding, in a manner requiring little force, a first component being held by the robot arm, characterised in that a first, second or third operating mode is selected using an input means such that, depending on the actuation of the input means, - in a first method step, in the first operating mode, the vehicle is operated autonomously together with the robot arm, in particular is controlled by the controller, - in a second method step following the first method step, in the second operating mode, a human-guided operation is carried out such that the target position specified for the drive of the vehicle is altered depending on the sensor signals from the sensor ring, constant values being specified as the respective target positions of each drive of the robot arm, the actual positions of the respective drives of the robot arm when the input means is actuated for selecting the second operating mode being specified as the target positions of the respective drives of the robot arm, - in a third method step following the second method step, in the third operating mode, a human-guided operation is carried out such that the respective target positions of each drive of the robot arm are altered depending on the sensor signals from the sensor ring, a brake of the vehicle being applied or a constant value being specified as the target position for the drive of the vehicle, the actual position of the drive of the vehicle when the input means is actuated for selecting the third operating mode being specified as the target position of the drive of the vehicle, - in a first method step, in the first operating mode, the vehicle is operated autonomously together with the robot arm, in particular is controlled by the controller, - in a second method step following the first method step, in the second operating mode, a human-guided operation is carried out such that the target position specified for the drive of the vehicle is altered depending on the sensor signals from the sensor ring, constant values being specified as the respective target positions of each drive of the robot arm, the actual positions of the respective drives of the robot arm when the input means is actuated for selecting the second operating mode being specified as the target positions of the respective drives of the robot arm, - in a third method step following the second method step, in the third operating mode, a human-guided operation is carried out such that the respective target positions of each drive of the robot arm are altered depending on the sensor signals from the sensor ring, a brake of the vehicle being applied or a constant value being specified as the target position for the drive of the vehicle, the actual position of the drive of the vehicle when the input means is actuated for selecting the third operating mode being specified as the target position of the drive of the vehicle, the first component, which is being held, being guided towards the fixedly mounted second component by means of the robot arm and being centred thereon without any substantial force being exerted, in order to connect, in particular screw-connect, the first component to the second component.