Work vehicle

A work vehicle, comprising:

• a main pump and an accessory pump that are driven by an engine;
• a working device that is driven by pressure oil discharged from the main pump;
• an operating device that operates the working device;
• an auxiliary machine that is driven by pressure oil discharged from the accessory pump;
• a priority valve that is switched between a normal position and a merging position, the normal position directing the pressure oil discharged from the accessory pump toward the auxiliary machine, the merging position directing the pressure oil discharged from the accessory pump toward the working device;
• a forward reverse operating device that that provides an indication of a forward direction and a reverse direction the work vehicle is desired to travel;
• and
• a control device that holds the priority valve in the normal position in a first case when either the forward direction or the reverse direction which is indicated by the forward reverse operating device and a travel direction of the work vehicle do not match each other, and that switches the priority valve to the merging position in a second case when either the forward direction or the reverse direction which is indicated by the forward reverse operating device and the travel direction of the work vehicle match each other and the operating device is in an operated state.