| 摘要 |
<p>A forage harvester is provided with a rotatable cutterhead (9), cutterhead sharpening means (15), means (33) for moving the sharpening means (15) along a path adjacent the cutterhead (9) and means for moving the sharpening means (15) towards said cutterhead (9). During the final stage of the sharpening cycle the sharpening means (15) are automatically moved along said path at a substantially lower speed in order to improve the finishing of the cutterhead (9), such that the shearbar (11) can be adjusted closer to the rotating cutterhead (9). <IMAGE></p> |
