Autonomous agricultural machine equipped with an exploded engine system

A method of making an autonomous agricultural machine comprising a frame having an inverted U section, to which at least one front wheel and at least one rear wheel are connected and defining a track, the frame having two sides, corresponding to branches of the inverted U section and a roof, corresponding to a base of the inverted U section, the method comprising:

• mounting a combustion engine system comprising an engine to the frame,
• mounting a cooling system having an air circulation duct arranged in an upper part of the frame, directly under the roof, the air circulation duct having at least one opening to allow the intake of outside air into the air circulation duct and an upper air outlet to expel hot air upwards, above the roof,
• including a ventilation device with the cooling system for air circulation in the air circulation duct, the air circulation duct being configured to allow air circulation to cool the engine,
• placing two tanks substantially arranged between the front wheel and the rear wheel, respectively, with one tank on each side of the autonomous agricultural spraying machine, and
• adding a spraying system, the spraying system comprising at least two side collector panels, wherein the tanks and the at least two side collector panels being located in the track of the autonomous agricultural spraying machine.