| 摘要 |
PROBLEM TO BE SOLVED: To smoothly reduce the engine speed at the end of a work to prevent the engine failure by providing a control device for automatically moving an accelerator lever means to a preliminarily stored position, when the work is temporarily stopped, and controlling the engine speed to an idling speed. SOLUTION: The condition for performing an idling control or not is detected during the operation of a combined harvester and when a condition such as the neutral position of an HST lever 62a, or the zero detection value of a vehicle speed sensor 3a is satisfied, an automatic control is performed by a CPU 201. Namely, when 'idling regulation flag?' is NO, 'automatic deceleration control' is performed to control the engine speed to a low rotation. At this time, 'idling position is certified?' is checked, and when this judgment is YES and 'position<idling position=α?' is YES where the position is smaller, 'position>=idling position+α?' is judged. When it is YES, the completion of positioning is judged.
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