Complete Success.
After calling all the family, friends, neighbors, enemies, dictators and serial killers I knew, I came up completely empty. You know it's a bad start to the conversation when I ask someone if they have an "oxy-acetylene torch kit" and their response is "What's that?". And all the rental places are closed today.
So I said fork it, let's try it, it's only $14. I used the "Mapp" cylinder shown above (Post #32) with a HF trigger torch kit (which, by the by, will receive a very good PASS in the HF Pass/Fail thread), but I digress.
I started heating about an inch above the carriage but didn't like the angle, so I moved up to about 6-7" and heated a spot deliberately at the location of a latch notch in the lock ladder. After about 2-3 minutes of heating one side, I got it to a dull red; I then moved to the other side and did the same. I started changing back and forth every 30-45 seconds or so and eventually both sides were dull red. I got not only the flanges red hot but also the web. After about 15 minutes of this, I finally stopped and let it cool for about 2 hours.
As soon as I unscrewed the clamp, I knew that it had resoundedly worked.
Left/powered/undamaged side on the first (lowest height) lock (sorry for poor pic, I failed to put a light on it):

Right/unpowered/damaged side lock ladder on the same first (lowest height) lock:

The distance from the top of the lock ladder to the column is a maximum of 1/4". I'm pretty sure that I hit that mark.
For contrast, the previous right/unpowered/damage side lock ladder:

Thanks for all the help.
Next up: My analysis of what caused this issue. But right now, it's Miller Time.
After calling all the family, friends, neighbors, enemies, dictators and serial killers I knew, I came up completely empty. You know it's a bad start to the conversation when I ask someone if they have an "oxy-acetylene torch kit" and their response is "What's that?". And all the rental places are closed today.
So I said fork it, let's try it, it's only $14. I used the "Mapp" cylinder shown above (Post #32) with a HF trigger torch kit (which, by the by, will receive a very good PASS in the HF Pass/Fail thread), but I digress.
I started heating about an inch above the carriage but didn't like the angle, so I moved up to about 6-7" and heated a spot deliberately at the location of a latch notch in the lock ladder. After about 2-3 minutes of heating one side, I got it to a dull red; I then moved to the other side and did the same. I started changing back and forth every 30-45 seconds or so and eventually both sides were dull red. I got not only the flanges red hot but also the web. After about 15 minutes of this, I finally stopped and let it cool for about 2 hours.
As soon as I unscrewed the clamp, I knew that it had resoundedly worked.
Left/powered/undamaged side on the first (lowest height) lock (sorry for poor pic, I failed to put a light on it):

Right/unpowered/damaged side lock ladder on the same first (lowest height) lock:

The distance from the top of the lock ladder to the column is a maximum of 1/4". I'm pretty sure that I hit that mark.
For contrast, the previous right/unpowered/damage side lock ladder:

Thanks for all the help.
Next up: My analysis of what caused this issue. But right now, it's Miller Time.

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