Abstract: Provided is an excavating machine, such as for use in digging trenches. The excavating machine includes an earth moving assembly having a wheel, a plurality of teeth mounted on the wheel, a frame retaining a portion of the wheel, and a cleaning assembly for removing spoil from the earth moving assembly prior to the wheel entering the frame. The teeth may include first and second cutting portions. The first cutting portion may include a narrow leading edge, while the second cutting portion includes a wide leading edge. Moreover, the cleaning assembly may include right and left cleaning assemblies which may each include side and front cleaning members, as well as a removable tooth. The machine may include at least one spoil surface for moving spoil removed by the cleaning assembly away from the dug trench.