Windrower autoguidance hydraulic steering interface
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United States of America Patent
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-
Aug 11, 2015
Grant Date -
Dec 4, 2014
app pub date -
May 30, 2013
filing date -
May 30, 2013
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An autoguidance interface for a hydraulic steering system for a differential steered self-propelled agricultural windrower, windrower speed and direction controlled by adjustment to a control input shaft to control the output of a pair of tandem-mounted hydraulic drive pumps and provide motive power for the windrower. The control input shaft is rotatable and axially moveable. A hydraulic steering motor is operably connected to the input shaft to effect control input shaft rotation. Rotation of the hydraulic steering motor is selectively managed by a steering control valve attached to a cab-mounted windrower steering wheel or a proportional steering valve managed by the autoguidance system. A selector valve controls the active steering input. An emergency disengagement positions the selector valve to restore manual control by the steering wheel.
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