Abstract: A control is proposed for dividing the output flow in hydraulic systems made available by at least one pump to a plurality of users according to the load pressure-independent principle in case of output flow undersupply of the users, wherein a compensator is connected downstream of each control slide valve provided with a predeterminable control cross section, with the compensator including a piston and actuating element and each user connected downstream of the compensator receiving a predeterminable portion of the output flow as a function of the degree of undersupply by the pistons of the compensators, with the piston being acted upon by different forces which bring about different opening pressures.

Abstract: Arrangement for swinging an attachment holder for the equipment of a hydraulic excavator around an axis perpendicular to the platform plane of the upper carriage, in a working direction parallel to the longitudinal direction of the excavator chassis. The lower part of the boom is vertically swingably fastened to the attachment holder which in turn is pivoted to the upper carriage by two radial links which are mounted at each end for turning around a vertical axis. The upper carriage is pivoted to the chassis. Furthermore the attachment holder is operatively connected to an active setting member. It is the pivoting of the carriage relative to the chassis together with the pivoting of the attachment holder relative to the carriage which enables the movement of the attachment holder in a working direction parallel to the longitudinal direction of the excavator chassis.