PROBLEM TO BE SOLVED: To construct an operation system that automatically shifts both a grain tank and a grain unloading device to a grain discharge state or a grain storage state.SOLUTION: A combine-harvester comprises: a tank swinging mechanism TM for vertically swinging a grain tank 12 between a descending posture (L) and an ascending posture around a horizontal axis a turning mechanism SM for turning a grain discharge device 40 around a vertical axis a manual operation tool 84 for giving an automatic operation command for automatically performing a posture change of the grain tank 12 by the tank swinging mechanism TM and a posture change of the grain discharge device 40 by the turning mechanism SM and an automatic shift management part 552 for outputting an automatic discharge shift command for shifting the grain discharge device 40 to a discharge posture and shifting the grain tank 12 to the ascending posture, or an automatic storage command for shifting the grain tank 12 to the descending posture (L) and shifting the grain discharge device 40 to a storage posture on the basis of the automatic operation command.SELECTED DRAWING: Figure 9COPYRIGHT: (C)2017,JPO&INPIT【課題】穀粒タンクと穀粒搬出装置の両方を穀粒排出状態または穀粒貯留状態に自動的に移行させる操作系の構築。【解決手段】穀粒タンク12を横軸心周りで下降姿勢(L)と上昇姿勢との間で上下揺動させるタンク揺動機構TMと、穀粒排出装置40を縦軸心周りで旋回させる旋回機構SMと、タンク揺動機構TMによる穀粒タンク12の姿勢変更及び旋回機構SMによる穀粒排出装置40の姿勢変更を自動的に行う自動動作指令を与える人為操作具84と、自動動作指令に基づいて、穀粒排出装置40を排出姿勢に移行させるとともに穀粒タンク12を上昇姿勢に移行させる自動排出移行指令、または、穀粒タンク12を下降姿勢(L)に移行させるとともに穀粒排出装置40を格納姿勢に移行させる自動格納指令を出力する自動移行管理部552とが備えられている。【選択図】図9