DEVICE FOR LIFTING AND LOWERING FRONT TREATING PART IN COMBINE HARVESTER

PROBLEM TO BE SOLVED: To facilitate an operation for regulating a stopper bolt for setting a lowering lower limit position of a front treating part of a combine harvester. SOLUTION: A supporting member 15 having the stopper bolt 14 for setting the lowering lower limit position of the front treating part 1 screwed therein, is attached to a hydraulic cylinder 7 so that the position may be freely changed upward and downward, and the upwardly changed position where the stopper bolt 14 is positioned at the upper part of the hydraulic cylinder 7 is constituted so that the stopper bolt 14 may be in the operation posture for setting the lowering lower limit position of the front treating part 1, in the combine harvester having the front treating part 1 installed so as to be lifted and lowered by the expanding and contracting operation of the hydraulic cylinder 7 connecting a body frame 4 and a supporting frame 2.