The mounting ring corroded and broke
James D. • Sandy, OR • July 01, 2014
Appliance: Model UNKNOWN, NOT READABLE
My Repair & Advice
I replaced the ring after wire brushing all of the mating surfaces. The gland at the sink interface developed an un-noticed leak. Over time the moisture corroded the mounting ring. I pulled the disposer unit and attaching hardware, cleaned and resealed the sink gland. Re-installed the disposer unit and checked for leaks. I also replaced the dishwasher drain hose adapter and clamps.