Dexta: How do I remove the position control follower pin

I have the 3-point lift casting removed from the top of the rear end on my 1960 Dexta and the position control follower pin (I hope that's the correct term) is worn nearly through. How do I remove it from the cast lever that it seems to be pressed in to? Can I tap it out with a hammer & punch? Do I need to remove the cast lever & press the pin out? I also need the USA part number. Thanks.
I have removed the position control arm. I failed to press it out with a 6" bench vice. Should I try heat first, or move to a 20 ton press. I don't want to break the arm. Thanks.

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