A conveyor idler replacement system in one example with an H-frame (support frame). The system including a base with a first vertical strut extending from the base, a second vertical strut extending substantially vertically from the base; each of the first vertical strut and second vertical strut comprising a first idler frame bracket on a first longitudinal side of the H-frame; a first idler frame extending between the first idler frame bracket on the first vertical strut and the first idler frame bracket on the second vertical strut; at least one idler attached to the first idler frame, the idler configured to rotate, configured to support a conveyor belt. Including a system for lifting the belt and replacing idler frames.