Hi EElevator, gosh, sorry for the late reply, my bad. You are very insightful and I very much appreciate your advice. Yes, Cambridge was actually very good with giving non-dealers schematics and advice. (which I didn't realize, I had thought they may have been like Savaria/Garaventa/Federal, and just didn't want to give information). After talking with them and getting PDF files and help, was able to fix this lift. Thus, at the end, this has changed my recommendation thinking, and such diligent service by a maker, makes me suggest them to any new buyers recommended installer. I fix, but can only fix with information.
For others that have Savaria/Concord units, and need help, just let me know and I can do my best to help. This type of information is just good for the industry and independant service providers, so that we can help clients and each other to our best of ability.
Thanks,
Vince