Patent ID: 7140169

Claim:
An agricultural harvesting machine comprising: crop processing means for processing harvested crop material; feeder means for feeding the harvested crop material to said crop processing means; an engine; and hydraulic drive means for driving said feeder means, said hydraulic drive means comprising a hydrostatic pump coupled to said engine, a hydrostatic motor coupled to said feeder means and hydraulic circuitry interconnecting said hydrostatic pump and said hydrostatic motor, said hydraulic circuitry comprising feeder arrest means operable to automatically interrupt the oil flow from or to said hydrostatic motor, thereby arresting said feeder means, said hydrostatic motor including flushing means for diverting at least part of the oil flow in said hydraulic circuitry through said hydrostatic motor to an oil tank or a cooling means, said flushing means comprising a flushing valve, and said feeder arrest means being disposed in said circuitry between said hydrostatic motor and said flushing means, said feeder arrest means comprising a feeder arrest valve, wherein said feeder arrest valve and said flushing valves are incorporated into a single valve assembly mounted to said hydrostatic motor.