An agricultural sprayer for being carried by an agricultural machine comprising a lifting system provided with a main lifting point, the agricultural sprayer comprising a hitch system for hitching the agricultural sprayer to the agricultural machine and a fixed chassis to which the hitch system is mounted, the lifting system of the agricultural machine being for raising and lowering the chassis relative to the agricultural machine, between a lowered position in which the chassis is put on an overall horizontal ground, and a raised position in which the chassis is carried by the agricultural machine, when the agricultural sprayer is hitched to the agricultural machine, the hitch system further comprising: - a hitch yoke comprising an overall horizontal hitch axis, the hitch yoke being further pivotably mounted to the chassis, about a first pivot axis substantially parallel to the hitch axis, between a distant position and a close position in which the hitch axis is closer to the chassis than in the distant position, a distance (d) between the hitch axis and the first pivot axis being fixed, the main lifting point being arranged to be reversibly mounted to the hitch axis and to pivot relative to the hitch yoke about the hitch axis and cause the hitch yoke to pivot between the distant position and the close position, when the main lifting point is mounted to the hitch axis, - a locking device (20, 21, 23) designed to automatically lock pivoting of the hitch yoke relative to the chassis, in a first pivot direction from the close position to the distant position, when the hitch yoke, pivoting from the distant position to the close position, reaches the close position, the agricultural sprayer being hitched to the agricultural machine, when the main lifting point is mounted to the hitch axis, the hitch yoke occupies the close position and the locking device (20, 21, 23) locks pivoting of the hitch yoke in the first pivot direction, the agricultural sprayer being characterised in that the hitch axis is further located above the first pivot axis of the hitch yoke, when the hitch yoke occupies the close position. - a hitch yoke comprising an overall horizontal hitch axis, the hitch yoke being further pivotably mounted to the chassis, about a first pivot axis substantially parallel to the hitch axis, between a distant position and a close position in which the hitch axis is closer to the chassis than in the distant position, a distance (d) between the hitch axis and the first pivot axis being fixed, the main lifting point being arranged to be reversibly mounted to the hitch axis and to pivot relative to the hitch yoke about the hitch axis and cause the hitch yoke to pivot between the distant position and the close position, when the main lifting point is mounted to the hitch axis, - a locking device (20, 21, 23) designed to automatically lock pivoting of the hitch yoke relative to the chassis, in a first pivot direction from the close position to the distant position, when the hitch yoke, pivoting from the distant position to the close position, reaches the close position, the agricultural sprayer being hitched to the agricultural machine, when the main lifting point is mounted to the hitch axis, the hitch yoke occupies the close position and the locking device (20, 21, 23) locks pivoting of the hitch yoke in the first pivot direction,