Abstract: A combine tray lift system for selectively positioning a combine tray includes a pair of tray lift assemblies attachable to combine tray securing nuts on opposite sides of a combine. Each tray lift assembly includes a rotatable sleeve having a handle, a protrusion, and locking members disposed therefrom. A bar member is coupled between the protrusion and the tray securing nut such that rotating the sleeve adjusts the position of the combine tray. A locking bar is provided for engaging a selected one of the locking members to hold the tray in a selected position. In a preferred embodiment, a lock disengaging member is coupled to the handle such that the locking bar can be disengaged while gripping the handle.