Patent ID: 7357064

Claim:
A control arrangement for mobile equipment comprising: a boom pivotable by means of a boom cylinder; a shovel pivotally mounted at the boom by means of a shovel cylinder, each of the boom and the shovel including a control unit having a pilot control device and a proportional valve for controlling the boom cylinder and the shovel cylinder; and a valve arrangement, whereby during lowering of the boom, a control line of the boom control unit acting in the direction of lowering may be connected with a signal line of the shovel control unit, so that the shovel may be taken into a target position with respect to the boom by means of the control pressure tapped at the boom control unit, wherein the valve arrangement is arranged between a boom connecting line connected with the control line and a shovel connecting line connected with an inlet of a shuttle valve, and wherein the shuttle valve is connected by another inlet with the signal line and by its outlet with a control chamber of the shovel proportional valve.