Yes one of the connections overheated/failed. Fortunately one of the hot sides so I didn't have issues with floating neutral. I didn't know that split bolt connectors were dual rated, that sounds like a solution. Better than a wire nut anyway. I can put an extension on the box to get more room...
The power connection is made in a metal box in the mounted in the oven cabinet just above the microwave. It's a builtin microwave/oven combination. For whatever reason box was installed in that position in the cabinet when the kitchen cabinets were done. Installation hasn't been touched since...
What are approved devices to make the connection? I can't find any wire nuts approved for this use.
I have a builtin hardwired oven that is fed with #8 stranded aluminum and oven connections are also stranded aluminum wire. The house is 1.5 years old. Connections were made with normal wire...
Many Chamberlain/Sears chain drive openers have a sintered metal gear that drives the chain. The tension of the chain causes a groove to wear in the side of the gear. As wear increases the gear plane tilts further and further from the plane the chain moves in. Increasing up/down force adjustment...