Offering up this idea for those in need. I made several attempts using different methods to get the coupling reconnected. All were unsuccessful because of the tight space. So, I made a coupling tool or key to insert before pressing the two halves together. Once pressed together, the key was removed and the coupling locked into place. The tool mouth is about 9/16" deep and 11/16" wide, and 1/16" thick overall. Feel free to copy for your own use. But don't ask me to repeat the process of reconnecting the coupling for documentation purposes. I received way too many scrapes and bruises, and lost too much sweat after taking that coupling off!