A mobile earth working machine, for instance a road milling machine, recycler, or surface miner, the earth working machine, in a reference state ready for earth-working operation, encompassing: - a machine frame; - a plurality of drive units (16, 18), connected to the machine frame, for furnishing ground-based mobility for the earth working machine; - a working apparatus, retained on the machine frame, for material-removing working of a region of a substrate; - a functional apparatus (34, 86) that is different from the working apparatus and is connected to the machine frame pivotably movably relative to the machine frame; - a pivot joint arrangement, arranged functionally between the machine frame and the functional apparatus (34, 86), having a frame-associated joint element that is connected to the machine frame, and having an apparatus-associated joint element that is connected to the frame-associated joint element pivotably by means of a pivot joint around a pivot axis relative to the frame-associated joint element and is connected to the functional apparatus (34, 86), wherein there is embodied between the machine frame and the functional apparatus (34, 86) a mechanical coupling structure by means of which the functional apparatus (34, 86) is coupled intentionally physically detachably to the machine frame; the coupling structure comprising a frame-side coupling configuration that is connected to the machine frame, and comprising an apparatus-side counterpart coupling configuration that is connected to the functional apparatus (34, 86); the coupling structure being embodied with a spacing from the pivot joint in such a way that the frame-side coupling configuration and the apparatus-side counterpart coupling configuration are both embodied on the apparatus-associated joint element, wherein the functional apparatus (34, 86), in addition to the pivotability relative to the machine frame around the pivot axis, is tiltable around a tilt axis that is orthogonal to the pivot axis, wherein the earth working machine comprises a tilt actuator in order to bring about in actuator-driven fashion the tilting motion of the functional apparatus (34, 86) relative to the machine frame around the tilt axis, characterized in that the frame-associated joint element is connected to the machine frame immovably relative to the machine frame, wherein the tilt actuator is arranged entirely on the apparatus side, such that it remains connected to the functional apparatus even in the decoupled state. - a machine frame; - a plurality of drive units (16, 18), connected to the machine frame, for furnishing ground-based mobility for the earth working machine; - a working apparatus, retained on the machine frame, for material-removing working of a region of a substrate; - a functional apparatus (34, 86) that is different from the working apparatus and is connected to the machine frame pivotably movably relative to the machine frame; - a pivot joint arrangement, arranged functionally between the machine frame and the functional apparatus (34, 86), having a frame-associated joint element that is connected to the machine frame, and having an apparatus-associated joint element that is connected to the frame-associated joint element pivotably by means of a pivot joint around a pivot axis relative to the frame-associated joint element and is connected to the functional apparatus (34, 86), wherein there is embodied between the machine frame and the functional apparatus (34, 86) a mechanical coupling structure by means of which the functional apparatus (34, 86) is coupled intentionally physically detachably to the machine frame; the coupling structure comprising a frame-side coupling configuration that is connected to the machine frame, and comprising an apparatus-side counterpart coupling configuration that is connected to the functional apparatus (34, 86); the coupling structure being embodied with a spacing from the pivot joint in such a way that the frame-side coupling configuration and the apparatus-side counterpart coupling configuration are both embodied on the apparatus-associated joint element, wherein the functional apparatus (34, 86), in addition to the pivotability relative to the machine frame around the pivot axis, is tiltable around a tilt axis that is orthogonal to the pivot axis, wherein the earth working machine comprises a tilt actuator in order to bring about in actuator-driven fashion the tilting motion of the functional apparatus (34, 86) relative to the machine frame around the tilt axis, characterized in that the frame-associated joint element is connected to the machine frame immovably relative to the machine frame, wherein the tilt actuator is arranged entirely on the apparatus side, such that it remains connected to the functional apparatus even in the decoupled state.