Furrow opener operating apparatus

摘要: There is described a furrow opener apparatus capable of operating in furrowing mode and carrying mode. The consists double acting hydraulic cylinder having one end connected to drag arm the other connectable drill rig. It incorporates pressure cushioning system consisting at least absorber lines communicating through valve with both thrust draw sides cylinder. further communicates single or pump reservoir an associated prime mover such as tractor. hydraulically In first second mover. use when cushions forces transmitted from openers maintains substantially constant on thereby create net downward force ram onto arm. operable by its respectively lower raise