Transportation vehicle

A transportation vehicle comprising:

• at least one hydraulic pump that is driven by a prime mover;
• a hydraulic motor that is driven by a hydraulic operating fluid supplied from a first hydraulic pump of the at least one hydraulic pump;
• a cooling fan that is driven by the hydraulic motor;
• a heat exchanger that is disposed in a front portion of a vehicle body, and cools a cooling object by cooling air generated by the cooling fan;
• a hydraulic cylinder that is driven by the hydraulic operating fluid supplied from the first hydraulic pump;
• a fan control valve that controls a flow of the hydraulic operating fluid supplied from the first hydraulic pump to the hydraulic motor;
• a cylinder control valve that controls a flow of the hydraulic operating fluid supplied from the first hydraulic pump to the hydraulic cylinder;
• and
• a controller that controls the fan control valve and a delivery capacity of the at least one hydraulic pump,
• the fan control valve and the cylinder control valve being connected in tandem to a hydraulic fluid line that connects the first hydraulic pump and a hydraulic operating fluid tank to each other,
• the fan control valve
• being disposed on an upstream side of the cylinder control valve,
• having a neutral position that makes the first hydraulic pump and the cylinder control valve communicate with each other, interrupts communication between the first hydraulic pump and the hydraulic motor, and makes a suction port and a delivery port of the hydraulic motor and the hydraulic operating fluid tank communicate with each other, and
• having a rotation position that interrupts the communication between the first hydraulic pump and the cylinder control valve, makes the first hydraulic pump and the suction port of the hydraulic motor communicate with each other, and makes the delivery port of the hydraulic motor and the hydraulic operating fluid tank communicate with each other.