MOBILE OPERATING MACHINE AND FUCTIONING METHOD OF SAID MOBILE OPERATING MACHINE

Mobile operating machine (10) comprising a motor vehicle (11) moved by an endothermic engine (12), an articulated arm (13), a pumping unit (15) and a stabilizing unit (16) wherein the endothermic engine (12) is provided with at least two power take-offs (25, 26). The mobile operating machine (10) also comprises a hydraulic pump (29) and an electric motor (35) operatively connected to the endothermic engine (12), to the hydraulic pump (29) and to an electric accumulator (37).