| 摘要 |
PROBLEM TO BE SOLVED: To enable highly accurate adjustment of straight-ahead driving by recognizing the exact number of rotations of left and right crawler traveling parts even at a place without an dedicated measurement device. SOLUTION: A tractor T for causing the left and right crawler traveling parts 1L, 1R to be independently operated by separate hydraulic drive motors 3L, 3R, respectively, comprises: a left rotation sensor 14L for detecting the rotations of the left crawler traveling part 1L; a right rotation sensor 14R for detecting the revolutions of the right crawler traveling part 1R; and a liquid crystal panel 11 for displaying the number of rotations of the left crawler traveling part 1L and the right crawler traveling part 1R. COPYRIGHT: (C)2008,JPO&INPIT
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