| 摘要 |
PROBLEM TO BE SOLVED: To provide a combine which enhances the safety of a work environment of an auxiliary worker, reduces a work burden of the auxiliary worker, and can efficiently perform reaping/threshing work.SOLUTION: There is provided a control device (85) which lowers a rotation number of an engine (62) to a value lower than a rated rotation number at a manual handling mode which maintains a transfer speed (VF) of a feed chain (12B) at a prescribed transfer speed, and when a traveling speed of a traveling device (2) is high, automatically switches the manual handling mode to a reaping/threshing mode which makes the transfer speed (VF) of the feed chain (12B) synchronized with the transfer speed (VH) of a reaper (4), and performs a gear change, and increases the rotation number of the engine (62) to the rated rotation number. |
