Trailer ramp pin removal

[pptom]

Hello all, I have an old Lolode twin axle trailer with a folding ramp tailgate.
I need to remove the tailgate for a couple of moves, but the hinge pin is solid.
It's a full width pin, circa 2m, probably 1/2" diameter. There are 3 x hinge tubes on the trailer body, one in the middle and one at each end, the pin seems free in these. The rest of the pin is enclosed in the tubes on the ramp side. I can't see any way that the pin is held in place, except by friction (now rust), maybe it was welded from new, but nothing is obvious.
I have about 10mm of pin accessible on one end. Any clever non destructive ideas on how to remove please?
Belting the pin doesn't touch it.

 

[Erie Fred]

How much will a new 2m long pin cost ?
"Non Destructive Ideas" I think the trailer is beyond that by now.
Looks like some cutting & welding is needed in that area anyways.

 

[jmp49]

Assuming that pin is ok and all the way through (it looks like its not home at the left most end in the 3rd shot), I'd slit the bushes off the trailer itself on the basis that a 2m long pin is hard to find, whereas you can knock a few bushes up from bits of pipe pretty easy. You can slit them down to the pin off the trailer where you can control it better then reuse the pin.

If its really free in all the bushes, you could try drifting it from one end, if there's any split pin etc hiding you can shear it and then clean it out later.

 

[Bornfree]

That looks like it's been in there a year or 10. Even with oxy acetylene heating the tube red hot you will struggle to get that out because it's such a long contact area.
The easiest way would be to cut the three hinge tubes off the trailer and weld them back on when you've finished using it without the tailboard

 

[8ob]

Looking at the second picture from the left I would say the hinge pin has been plug welded to the tailgate/ramp at that point.

Bob

 

[pptom]

Thanks all, was thinking about cutting the pin out, but cutting the bushes off is a much better idea. Might even just cut the tops out, so the ramp can be lifted off and the hinge still useable.
It's only got to do a house / workshop move plus a really light car, so hasn't got to be perfect.
Tom

 

[pptom]

Probably is a bit bent, I did try putting a jack or two under parts of the hinge to see if it made a difference, but not a sausage.
Must be plug welded somewhere.