WORK VEHICLE

摘要

PROBLEM TO BE SOLVED: To reduce a variation of engine speed if an operating state of a vehicle is changed when an engine is controlled to low output in response to a decrease of residual amount of a reducing agent solution, and smoothen the motion of the vehicle to improve fuel economy even when the engine is controlled to the low output.SOLUTION: A work vehicle with a front work device includes: a variable displacement hydraulic pump that is driven by an engine and supplies pressure oil to an actuator for driving the front work device; an exhaust emission control device for eliminating nitrogen oxide in exhaust gas exhausted from the engine by using a reducing agent solution accumulated in a reducing agent tank; a residual amount detection device for detecting residual amount of the reducing agent solution within the reducing agent tank; and a control section for lowering output torque of the engine and lowering engine speed at a rated point in response to a decrease of the residual amount of the reducing agent solution detected by the residual amount detection device.