The new mobile screen changing system reduces screen changing to a one-man operation, greatly reducing the necessary labor and eliminating the need to involve maintenance crews. This time-saving mobile device would be ideal for a plant with multiple round separator machines. After removing the clamp band of the targeted deck, the unit is maneuvered into position next to the separator. The clamping devices are locked onto the frame brackets, and using the hand operated pump the frames are lifted for easy screen removal. Once the screen is changed and the frame stack replaced, move onto the next machine for another simple screen change.