Inventors:
Erwin F. Link - Lansing IL
William L. Schubert - Downers Grove IL
Assignee:
International Harvester Company - Chicago IL
International Classification:
B62D 506
Abstract:
A steering circuit for an articulated farm tractor having front and rear frame sections pivotally interconnected with steering cylinders pivotally connected between the frame sections. An open center hydrostatic steering unit selectively directs hydraulic fluid from a pump to the steering cylinders and a pilot-operated, alternating check valve is interposed in the conduit connecting the steering mechanism with the steering cylinders.