| 摘要 |
PROBLEM TO BE SOLVED: To provide a capacity control device of a working machine pump for a working vehicle which improves operability of the working machine and simultaneously reduces hydraulic loss, by providing capacity of the working machine pump according to engine speed, load to the working machine, and manipulated variable of a working machine lever. SOLUTION: This capacity control device of a working machine pump for a working vehicle is equipped with a working machine load detecting means 13 for detecting load to a working machine, a high-load and small-capacity control signal generating means 9 which outputs control signals for reducing pump capacity with increasing of the load to the working machine, and a first selecting means 12 for selecting a control signal with larger pump capacity of respective control signals output by the high-load small-capacity control signal generating means 9 and a low-speed small-capacity control signal generating means 8. |
