| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a capacity control device for a pump for working vehicle capable of improving the working efficiency and the working machine operability while obtaining a desirable pump capacity of a working machine in response to the working condition such as engine speed and load pressure of the working machine. SOLUTION: This capacity control device is provided with a working machine pump 2 to be driven by an engine 1 and for driving a working machine actuator, a working machine pump capacity control means 5 for controlling the pump capacity of the working machine, a working machine load detecting means, and an engine speed detecting means 7. The working machine pump capacity control means 5 lowers the pump capacity of the working machine as the working machine load is increased and as the engine speed is reduced on the basis of each detection value of the working load detecting means and the engine speed detecting means 7.</p> |
