Wow thanks so much for all of this information, really helpful. I have started with the dashpot and vacuum hoses and think that there may be some initial issues there to sort out. Still trying to figure out he best way to get parts if I am still not sure on the model of lift. Would you know if Yale be able identify this with the serial number if I gave them a call? Would the dashpot be easy to replace without knowing the model of the lift? Any good places to get parts for older lifts? Not sure about the engine type, would that information be on or around the engine with some marking?
Sorry for all the questions, I'm a newbie just trying to figure it out.
Again, thanks so much for helping me out.
Ian