| 摘要 |
An agricultural implement has a working position extending laterally behind a towing tractor and a transport position in which it is towed endwis e behind the tractor. The implement has ground wheels that support the implement in both working and transport positions. These are rotatably mounted on the implemen t frame and are coupled to the hitch pole and the instrument by a steering linkage so that as the hitch pole moves between its working and transport positions, th e wheels are steered between their respective working and transport positions.</SDOAB >
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