| 摘要 |
PROBLEM TO BE SOLVED: To eliminate problems that lever operations are complicated and that an error operation is liable to be caused, on the steering operation of a conventional combine harvester, because the steering operation of two side clutches are required, wherein the conventional combine harvester has the side clutches disposed on right and left travel devices, respectively, has side clutch levers on the right and left side clutches, respectively, in an operation section, and permits that the side clutches can independently be connected or disconnected by the use of the side clutch levers, respectively, to steer the combine harvester. SOLUTION: The right and left side clutches can be connected or disconnected by the right or left rotation operation of one side clutch lever 176. An assist lever 174 is further laterally disposed close to the side clutch lever 176. The right and left rotation loci of the side clutch lever 176 are overlapped on the lateral width of the assist lever 174 on the rear side view.
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