ZL1801 Clutch Problems

Hello all. I'm a total rookie here and I'm sure it will show. I have recently purchased a house with 3 acres of land and I convinced the seller to leave me his ZL1801 as part of the deal. In the past month or so of owning the tractor, I have learned a great deal at (unfortunately) the tractor's expense. Just when I thought I had everything figured out, I managed to push my clutch pedal so far that it literally went 180 degrees around and got stuck below the footrest.

I managed to undo the linkages and pry the pedal back up to the top after finding what was left of what I presume should be pedal/linkage stop. After getting the pedal back up, the clutch would no longer work. I have to now press the pedal almost to the point where it will flip back under again. I have adjusted the linkage to its maximum stroke, but I fear I am going to mess up something else by pushing the linkage so far.

My question is what exactly happened here? It seems to me like I rotated some sort of pivot/linkage that is internal too far and now my clutch won't function properly. Did I shear a spline on a shaft of some sort? I'm mechanically experienced, just completely new to tractors.

Any help is greatly appreciated!!!

Well i'm not sure if this will help at all, but perhaps someone will have some experience with the matter.

Pic#1 - With the footrest installed, this is the position of the pedal and clutch linkage currently. This was prior to making any adjustments.

Pic#2 - Again, prior to any adjustments from before the "incident", this is the pedal and linkage when moving it by hand as far as possible.

Pic#3 - This is the furthest I can press the pedal before the linkage interferes with the pedal travel.

Pic#4 - This is as far as I can move the clutch linkage in the other direction with a wrench.

Does this all seem normal or can anyone tell if there is a problem here?