I've had to do much the same thing with not a lot more or better equipment than these guys had avail
https://youtu.be/NG9JZI6wT2o
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I've had to do much the same thing with not a lot more or better equipment than these guys had avail
https://youtu.be/NG9JZI6wT2o
If anybody told these guys "it can't be done," they certainly weren't listening.
Just go straight to the heat. These old shafts never come off. The sheave looked wrecked anyway. Get the carbon rods and gouge it out. I was on a job where a 400mm, 30 year old shaft that was secured with a Ringfeder NEEDED to come out. Yeah... zero percent chance of that happening. 12 hour or so later of gouging and it was free. If it's surgically clean, and been bathed in grease its entire life then maybe. If it's some scabby old piece of junk that's been out in the elements for decades it just isn't going to happen.
It amazes me how they can get the quality they do despite the conditions. Truly remarkable.
Neil
An unlimited supply of labor and all the time you need is how many civilizations progressed.