A suspension system for an unloading conveyor (102) of an agricultural harvester vehicle (100) has a first support (202) configured to hold the unloading conveyor (102) in a vertical unloading position； a second support (204) configured to hold the unloading conveyor (102) in a horizontal unloading position； a control circuit coupled to the first and second supports (202, 204), wherein the control circuit is configured to selectively engage at least one gas charged hydraulic accumulator (324, 326, 328, 330) to one of the first support (202) and the second support (204) to thereby spring-load the unloading conveyor (102) in the vertical or the horizontal direction (or both).
