A position adjustment assembly for an agricultural conveyor includes an inner arm having a first end configured to rotatably couple to an agricultural storage system, and an outer arm having a first end, a second end, and a pivot positioned between the first end and the second end. A second end of the inner arm is rotatably coupled to the outer arm at the pivot, and the agricultural conveyor is configured to rotatably couple to the second end of the outer arm. The position adjustment assembly also includes a rotation control assembly configured to couple to the agricultural storage system, and an intermediate link having a first end engaged with the rotation control assembly, and a second end rotatably coupled to the first end of the outer arm.