Gotcha on the brake parts cleaner. I figured the carb cleaner would damage any non metal parts anyway, which I just discovered hat there is a plastic bushing under one of the gears. Shown in the pic, the green arrow points to its location. Why do I wish this was a brass bushing? Maybe metal would provide too much resistance whereas plastic allows for smooth rotation of the threaded shaft. Do you see any problem with swapping this out to metal? Even a stack of washers? I just feel that plastic will wear out and I’ll be needing to replace it anyway. While it’s apart and the bushing is still good I can use it as a size reference.
Also, the blue arrow indicates the metal “tab” that was bent out of the rather thick sheet metal yoke that the motor assembly rides against. This was not square to the rest of the set up and had that plastic bushing riding on just one edge as the shaft rotated. I took the liberty to square this up so the bushing sits flat. I reassembled things and did a dry run and it actually seems that the motor moves up and down easier now.
Lastly, the red arrow points to the gear on the crank shaft of the motor lift. This gear is attached with a screw tray passes through the shaft and back into the gear on the other side. Sadly, the gear wobbles as the shaft is turned. This explains the shimmy from side to side I’ve watched my blade do as I raised and lowered it over the last theee years. Has never caused any serious problem to me or my projects, but depending on where you stop the blade height it is out of square to the table ever so slightly. 1/32” maybe. It’s been a looooong time since I’ve even checked it. I just recall during setup that no matter what I did the shimmy was still there and the blade passed in and out of square as I raised and lowered it. It’s alwas bugged me, and the way this is made there is no tweak for it. I loosened the screw and skewed the gear in the direction it needed to go in as I retightened it. This seemed to slightly lessen the wobble I could observe as I turned the wheel but I know once things are back together and the gear is under load to lift the motor it may not stay. I’m also aware I’m knit picking a $500 saw ($400 now, it has come down since I bought it, grrrrrrrrr) to specs of greater than 1/32 accuracy, but hey I shoot for the stars even if all I have is a slingshot. When I start refining things you can bet even my slingshots will end up being made from surgical steel with tactical rubber grips, a super elastic polymer band with a ratchet lock to hold it at half draw, and a suede leather cup to shoot high polished chrome steelies from. It’s liable to even have a laser sight mounted between the forks, and a pop off cap to store extra ammo in the handle. That’s how I roll. 😁