PROBLEM TO BE SOLVED: To provide a combine capable of preventing delay of a side clutch turning-ON action with respect to a straight advance operation returning an operation lever, and improving turning performance by achieving favorable responsiveness of the side clutch turning-ON action.SOLUTION: A combine is turned right or left by switching a right or left side clutch arm 136 by an operators right or left inclination operation of an operation lever. A side clutch hydraulic switch body 138 is arranged on an outer side of a transmission case 63 via a hydraulic switch bracket 139, the side clutch hydraulic switch body 138 including a right/left side clutch cylinder 137, and a right/left tension spring body 181 for return operation is connected to each of the right/left side clutch arms 136.
