| 摘要 |
A haymaking machine for central tedding and lateral windrowing has a pair of rotary rake heads carrying working tools. The tools are rotatively interconnected by means of a support chassis that carries a forwardly extending frame beam. The direction of rotation of the rotary rake heads automatically reverses when the relative position between the support chassis of the rotary rake heads and the frame beam is modified, thereby to transpose the machine from the tedding position into the windrowing position and vice versa.
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