Old 04-28-15, 03:40 AM
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Yes, my idea was drill the pin and effectively destroy it and replace it with a new one. You might find that when the pin is finally removed from the frame that the holes are so big due to wear that you need a bigger pin or you will need to drill the holes to a larger size and install a bushing to allow an 8mm pin to fit. Phosphor bronze bushes perhaps?
As you say, you could cut the pin in two places, ie, between the two points where the two half's of the frame/hinge come together. A hacksaw probably wont cut the pin if it has been hardened. You could use a thin cutting disk in the dremel or a 1mm cutting disk in an angle grinder. This method will almost certainly mean removing a small amount of material from the two joints so washers or spacers placed between the two joints will be needed to remove the slack when the hinge is reassembled. Try cutting the lower one first and removing that piece of the pin. This may be enough for the upper part to come out without having to make the second cut.
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