Fixit 1
I use flat washers on mine between the arm or link & the lock pin. I have noticed the arm or link works the lock pin out of the hole in the pin. It works for me, also a little squirt of Fluid Film on the pins seems to help. Cheers!!
Just stumbled across this, looks interesting, maybe I can learn something, maybe I can answer some questions. I'm an old retired heavy equipment mechanic with a few mixed old tractors I work/play with. JD, Farmall, AC & a Case.