| 摘要 |
The frame of an agricultural implement is elevated relative to land traversed by the cooperation of first and second pressure fluid actuators having cylinders of common inside diameter, a pressure fluid circuit connecting the actuators in series, and a pair of lever members having ground engaging wheels mounted thereon. A differential in the stroke of the pressure fluid actuators resulting from the series connection thereof is compensated for by connection of respective actuators at different spaced locations along corresponding lever members.
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