Customers replaced this coupling when the ice dispenser stopped delivering ice. The auger motor drive shaft was usually replaced along with it. The coupling-to-auger screw sometimes seized or stripped; drilling it out and fitting a new auger and screw solved it. Restacking the chipper blades in order was tricky for several, and photos taken beforehand, a parts diagram or the A-B-C blade lettering helped.
Summary written by AI from customer repair stories