The invention relates to a machine for cultivating a machine (1), comprising a frame (10) carrying at least one soil working tool (15), a gearbox (33) and a motor (17) rotating said tool 15) via said gearbox (33) and a transmission belt (18) mounted loosely on two pulleys (16, 19), one in connection with the drive shaft of said engine (17) and the other in connection with said gearbox (33), the clutch being made by applying against said belt (18) tensioning means (40, 401) maneuverable by a control lever (121) a handle (12) of the guide bar (11) of said equipment (1). According to the invention, said equipment (1) comprises a protective cover (20) for said belt (18), having first means (171, 172) for securing said motor (17) and second securing means , With said gearbox (33), said first and second securing means defining a center distance (E) between said engine (17) and said gearbox (33) when said engine (17) (33) on the chassis (10).
