Hydraulic drive apparatus

A hydraulic drive apparatus that supplies a working fluid to each of a travel motor and a loading actuator, the hydraulic drive apparatus comprising:

• a hydraulic pump that discharges the working fluid;
• a flow dividing valve that divides, as a first passage and a second passage, a pump passage connected to the hydraulic pump, and changes an opening degree of each of the first passage and the second passage according to an opening degree signal that is input to the flow dividing valve;
• a travel system hydraulic circuit that is connected to the first passage and controls a flow of the working fluid to the travel motor;
• a loading system hydraulic circuit that is connected to the second passage and controls a flow of the working fluid to the loading actuator;
• a travel-end pressure sensor that detects a travel-end supply pressure that is a pressure being supplied to the travel motor;
• and
• a control device that controls, by outputting the opening degree signal to the flow dividing valve, the opening degree of the first passage and the opening degree of the second passage according to the travel-end supply pressure detected by the travel-end pressure sensor.