Nothing unique about Berco master pin that I'm aware of. More beef and/or higher tonnage hydraulic press required.
get a new pin from Berco then get a gouging rod and burn the center from your old pin. let it cool then drive it out with a hammer. when ur done install new pin.
Sometimes you can pull the front idler back enough to slip tracks off, have done that on D2, no top carrier rollers on it though.
Suggestion of burning and then driving is one have used many times. often cut an X in pin from both sides, but all we had was Oxy-Acet -- lots of blowback!
Make sure you have a solid backing when driving the pin out, took two of us - one holding a pin with channel locks and one swinging 16 Lb hammer.
Good Luck!
Gregness where are you located?
I am in Olympia Washington, machine is on our ranch north of Spokane. Burning out the pin and replacing is the direction we are headed, but if I could save the pin that would be preferable. I don't think my old Cat guy is familiar with Berco, maybe he did not find the master? Hopefully replacement pins will be available and not too dear...
G
16 pound sledge is important.
Good driver setup so your holder is not endangered and you can swing like you mean it.
Put the master on the sprocket and back up to a square block so it has a corner under the grouser below the pin. This holds things securely
Finally, some heat on the rails around the pin.
I don't think a master is any smaller than a regular pin WHERE IT FITS INTO THE RAILS. Thought they were a little smaller the rest of the way through so they would move easier once you get it moved the first little bit. Maybe they are always worn a little (or a lot) where the bushing touches it instead of being made that way.
Nothing unique about Berco master pin that I'm aware of. More beef and/or higher tonnage hydraulic press required.