parts are assembled on an assembly device. Here cylinder A is first of all to press the first part into place. Only when the pressure of 20 is reached or exceeded (part is pressed into place) is cylinder B to insert the second part. when releasing the part, it is first of all necessary for the piston rod of cylinder B to retract. if this piston reaches the rear end position, the pressure builds up. if 30 bar has been reached, the piston rod of cylinder A is to retract. to ensure that the parts are not inserted too quickly, the pump delivery must be restricted to 2-3 l/min. Draw the displacement-step diagram and the circuit diagram.