Cecil, look around on your linkage to see if there is some type of flip latch to do this. My tractors are not the same model as yours but both have such a latch.
I took a look this morning and saw what looks like a hole with a pin driven through it on the clutch pedal shaft. Went out this evening and took a few pix. Here's what I got. Anybody have any ideas or solutions?
Thanks
Cecil