A harrow implement comprises a tool bar and harrow sections extending rearwardtherefrom. Each of a plurality of hydraulic cylinders is connected between thetool barand a corresponding harrow section. A hydraulic control is operative to supplypressurized hydraulic fluid such that the hydraulic cylinders exert asubstantially constantselected bias force on the harrow sections. The hydraulic control is operativeto directpressurized hydraulic fluid into a first port on each hydraulic cylinder toexert adownward bias force on the plurality of harrow sections, and operative todirectpressurized hydraulic fluid into a second port on each hydraulic cylinder toexert anupward bias force on the plurality of harrow sections. The hydraulic cylindercan beconfigured to raise the harrow sections to an idle position above the ground,and to atransport position extending up from the tool bar.
