| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To facilitate the switching between an automatic differential lock mode and a manual mode. <P>SOLUTION: The tractor can take an automatic mode to switch between a differential lock state and an interlocked state with differential lock mechanisms 85, 89 by actuating actuators 86, 90 of the differential lock mechanisms 85, 89 interlocked with the lifting operation of ground working machines 2R, 2P, and a manual mode to switch between the differential lock state and the interlocked state with differential lock mechanisms 85, 89 by the manual selection operation. The mode is set to the automatic mode based on the lifting and lowering of working machines 2R, 2P when the differential lock state is selected by a differential lock setting means 30 during the lowering motion of the working machines 2R, 2P, and to the manual mode when the differential lock state is selected by the differential lock setting means 30 during the lifting motion of the working machines 2R, 2P. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
