Abstract
The invention relates to a handling machine ( 1 ) comprising sensors ( 16, 18 ) configured to measure an extension range of the handling arm and an angle of inclination of the handling arm ( 6 ) relative to a horizontal plane or relative to the main body ( 2 ) of the handling machine, and a control unit ( 10 ) configured to: determine a cut-off threshold value as a function of the extension range and the angle of inclination of the handling arm ( 6 ), such that the cut-off threshold value is an increasing function of an effective distance ( ) between the second end of the handling arm ( 6 ) and the tilt axis, wherein the effective distance ( ) represents a distance projected onto a horizontal axis or onto a longitudinal axis of the main body, stop a movement of the handling arm in response to a detection that the instability signal is greater than the cut-off threshold value.