An operation set is provided for a mobile tool-bearing for agricultural operation machines, which allows for the application of phytosanitary products or the survey of information from a crop surface formed by the traveling of a self-impelled irrigation machine. The set includes a plurality of modules installed consecutively one after the other thus covering the whole length of the self-impelled irrigation machine, each one having a scanning tool that may be a nozzle and/or a sensor that applies the programmed dose as it is displaced along the section, and these modules being linked to each other by a motor cable covering all the length of an irrigation machine or the greenhouse, and which travels in both directions in an alternate manner, since the movement is achieved as the motor cable is linked to a synchronic belt on at least one point.
