| 摘要 |
PROBLEM TO BE SOLVED: To improve operability of a travel main transmission, and to prevent unexpected activation of a travel sub transmission. SOLUTION: In this tractor 1, a shift-up switch SW2 and a shift-down switch SW3 for gear shift operation of the main transmission 20 by electric-hydraulic control are provided in the grip section 142 of a sub gearshift lever 140 for gear shift operation of the sub transmission 50. In the side face of the grip section 142 on the inner side of the machine body, a rotating type main gear change operation tool 143 is provided. The shift-up switch SW 2 is on-operated according to the rotational operation of the main gear change operation tool 143 on the front side of the machine body, and the shift-down switch SW3 is on-operated according to the rotational operation thereof on the rear side of the machine body. COPYRIGHT: (C)2008,JPO&INPIT
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