Machine earth-working with a carrier frame improved

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The machine (1) has a supporting frame (4) including two lower arms (5) and an upper arm (6). The frame is passed from a bottom position to a top position and vice versa using two actuators (8) e.g. double acing cylinders. The actuators are associated with the lower arms and extend in vicinity of the lower arms. Each actuator extends upwardly in an inclined manner with respect to a median vertical plane of the machine. Each lower arm has large vertical inertia and less transversal inertia.