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 at a first location. The position adjustment assembly also includes 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. In addition, the position adjustment assembly includes an intermediate link having a first end configured to rotatably couple to the agricultural storage system at a second location, longitudinally offset from the first location. A second end of the intermediate link is rotatably coupled to the first end of the outer arm.