Abstract: A device (1) for adjusting the bearing force of a pantograph (30) of a railroad train set (10) on a catenary wire (2). The pantograph (30) has, at its upper end, a bow (3) in mechanical and electrical contact with the catenary wire (2), connected mechanically to an actuator (7, 34) exerting a nominal force on it at predetermined points and in a predetermined direction. A device (31) measures the contact force between the bow (3) of the pantograph (300 and the catenary wire (2) supplies information relating to the measured force. A transmitter (5, 4a) transmits the measurement information from the measuring device (31, 40) into an appropriate zone of the railroad train set (10). A processor (60, 20) processes the transmitted information and set-point range signals and supplies logical control signals. The actuator (6, 7) is controlled from the logical control signals when the measured contact force exceeds a predetermined maximum force threshold (Smax) or in responses to predetermined external control signals.