WORKING VEHICLE FOR SECURING MULTIPLE FUNCTIONS OF AN ACTUATOR BY OPERATING A WORKING CLUTCH IN POWER-TRANSMISSION AND CUT-OFF STATES AND A WORK SHIFT UNIT AT HIGH OR LOW SPEED, BASED ON AN OPERATION POSITION OF A SHIFT CONTROL TOOL

摘要

PURPOSE: A working vehicle is provided to reduce load applied on an actuator and to improve the durability of the actuator by preventing both operation resistances of a parking brake and a working clutch from applying on the actuator at the same time. CONSTITUTION: A working vehicle is composed of a traveling transmission(7); a shift control tool(17) for operating artificially an operation position of the shift control tool; a working clutch(14) having a power-transmission state for delivering power to a working machine(2) installed at a working vehicle body and a power cut-off state for intercepting power-transmission; and an actuator(33) for operating the working clutch in the power-transmission or power cut-off state based on the operation position of the shift control tool detected by a position sensor(37). If the position sensor detects that the shift control tool is operated in a neutral stop position, the working clutch is cut off by the actuator. If the position sensor detects that the shift control tool is operated at the low-speed traveling, the working clutch is operated into the power-transmission state by the actuator and a working transmission(13) for delivering power to the working machine is operated toward the low-speed side by the actuator. If the position sensor detects that the shift control tool is operated into the high-speed traveling, the working clutch is operated in the power-transmission state by the actuator and the working transmission is operated toward the high-speed side by the actuator.