I've run into the problem that I can't get any further than I have. As mentioned above, it's stuck around something. I was able to determine it's stuck around a pin that connects to an arm. And that arm is either riveted to the mech chassis or screwed in inaccessibly from the opposite side. As far as I can tell, it would require that I completely disassemble the entire chassis
just to get access to the section I need to replace the belt and gain clean the mode switch.
Unless someone else has worked on this model and can point out a different approach, I just don't see how it's even possible. I don't want to take it apart further than I have because I don't have a scope that would almost certainly be required to realign everything.
PIN.jpg