We didn't beat on it hardly at all, and when we did, we had a short chunk of pin the same diameter that we stuck in the hole. Otherwise, we've been pushing the whole time. Just cannot believe it hasn't started moving easier, and now we lost the threads on the pulling boltsIf you're beating and pushing on the pin it might mushroom just a tiny bit there in the bore and get tougher. Looking good though!
We have been pushing on it with all the torque we can apply to three 1" bolts. Isn't that 30-40 tons of pressure? Also been hammering on the pin flange the whole time. We've also heated the pin boss up 2-3 times and let cool completely yesterday, and the applied just enough heat today to get the boss hot, but hopefully not the pin. We could tell it would start moving at just the right amount of heat, and basically stop when the pin itself warmed up.Don't cut it out. I would have put a hydraulic jack and pushed off the other arm. Using a jack and hitting the flange with a big hammer more than likely would push right out. If not add heat. If the jack required a lot of force weld a bar across the arms so that the arms don't bend apart.
That pin would be out quick and easy.
There is still 4.5" of pin in the bore. We don't have a lance, I'm not sure you can cut a hole through that much with just a torch.Cut the pin off as close to the face as possible. Get the cylinder out of the way and burn a hole through the Center of what’s left of the pin with the cutting torch. It will slide out easier then.
I see that but your technique is not as good as a big jack actually the bolts don't even come close to the Same pressures
Pin is junk. Not worried about it in the least. Just want the fcuker out.I guess it depends on if you need to save the pin. It looks like it will need some build up at least.
All ideas we've considered, but if three 1" bolts pushing on it won't push it, is there really any likely chance of it turning? We did try and turn on it with a 4' pipe wrench and 8' pipe. No dice.Can you put a big pipe wrench on the pin and turn it or alternatively weld a plate on the pin so you can beat it with a hammer to turn it? Might have a little lip catching and turning the pin to a different position will let it slide out. Maybe you could turn it while pushing/pulling and kind of thread it out past the stuck point. Maybe even weld a big nut on the pin and put your biggest impact wrench on it.