Went and got my new to me baler hooked up for the first time the other day, kicked the PTO in and everything seemed to run great, kicked the PTO lever out and it just kept running even with the baler hooked up. It did this last fall with nothing hooked up but it stopped after a while. I took the inspection plate off of the bottom of the bell housing and everything seemed fine. Although the PTO brake shaft? Seemed to have alot of back and forth play with the lever in the off position, I had to pull back as hard as I could on the lever before I couldn't move said shaft. I'm leaning towards a brake issue but I'm not sure at all. Tractor is a 1968 4020 syncro
183xxx serial number.