PROBLEM TO BE SOLVED: To prevent discharge failure of grains due to insufficient rotation of an engine.SOLUTION: A combine harvester includes a grain tank 7 for storing grains, a discharge auger 9 for discharging grains in the grain tank 7, and an auger motor 28 for rotating the discharge auger 9, houses the discharge auger 9 at a prescribed housing position while under non-discharge operation, and rotates the discharge auger 9 to a position other than the housing position while under discharge operation. The combine harvester further includes engine rotation detection means for detecting engine rotation of the combine harvester, housing detection means for detecting that the discharge auger 9 is housed, and alarming means for making alarm when the number of the engine rotation is below a rating number while the discharge auger 9 is at other than the housing position.SELECTED DRAWING: Figure 18COPYRIGHT: (C)2016,JPO&INPIT【課題】エンジン回転数不足による穀粒の排出不良を事前に防止する。【解決手段】穀粒を貯溜する穀粒タンク7と、穀粒タンク7内の穀粒を排出する排出オーガ9と、排出オーガ9を旋回させるオーガモータ28とを備え、非排出作業時には、排出オーガ9を所定の格納位置に格納し、排出作業時には、排出オーガ9を格納位置以外に旋回させるコンバインであって、該コンバインのエンジン回転を検出するエンジン回転検出手段と、排出オーガ9の格納を検出する格納検出手段と、排出オーガ9が格納位置以外にあり、かつ、エンジン回転数が定格回転数未満である場合に警報を行う警報手段とを備える。【選択図】図18