BOUGHT NEW ONE WITH 2 TRI RINGS TO HOLD IT ON. FIXED IT BY JUST REMOVING BACK PANEL. THE NUT THAT HOLDS SHAFT ON IS A LEFT HANDED THREAD SO YOU WOULD TURN WRENCH TO THE RIGHT TO REMOVE. HAD IT FIXED AND RUNNING IN ABOUT 45 MINS OR SO. VIDEO SAYS TO REMOVE THE DRUM I DIDNT HAVE TO JUST LIFT DRUM SLIGHTLY TO MANUERVER IT IN PLACE.