Hydraulic system for working machine

A hydraulic system for a working machine, the hydraulic system comprising:

• a hydraulic pump;
• a first hydraulic actuator to be actuated by hydraulic fluid delivered by the hydraulic pump;
• a second hydraulic actuator to be actuated by hydraulic fluid delivered by the hydraulic pump;
• a first manual operator to be operated to set a first required flow rate;
• a second manual operator to be operated to set a second required flow rate;
• a first flow rate controller to control a first supply flow rate which is a flow rate of hydraulic fluid supplied to the first hydraulic actuator such that the first supply flow rate matches the first required flow rate set by operating the first manual operator;
• a second flow rate controller to control a second supply flow rate which is a flow rate of hydraulic fluid supplied to the second hydraulic actuator such that the second supply flow rate matches the second required flow rate set by operating the second manual operator;
• and
• a special flow rate control system to, when it is determined that a total required flow rate which is a sum of the first required flow rate and the second required flow rate is greater than a maximum delivery flow rate which is a maximum flow rate of hydraulic fluid deliverable by the hydraulic pump, gradually or stepwise reduce the first supply flow rate to allow the second supply flow rate to approach the second required flow rate.