This is one of the original Hy-Gain Ham-IV medium duty rotors with CDE controller.  It is in very good working condition with no noticeable issues.  The unit has been stored, unused in my shack for at least 16 years since it was a backup for another rotor I was using that never failed. Recently I tested this unit on my workbench and all appears to be fine across full range of travel.  The unit was opened to regrease the bearings with Kluber Asonic GHY72.  Additionally, the potentiometer and limits were cleaned and inspected.  A shortened wire harness is included so that you can also operate the unit on your workbench.  A copy of the digital manual can be provided.  I expect that you will have no issues with this equipment if operated within it’s specs.  Feel free to contact me if there are any further questions. All reasonable offers considered, Thanks, Dan.