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Found a weird trick for getting a stubborn governor rope sheave back on its shaft
Had a 90s Otis traction job where the governor rope sheave was seized tight on the shaft, wouldn't budge with heat or a gear puller. Out of ideas, I grabbed a bottle of the penetrating oil we keep for door hanger pins and soaked the hub overnight. Next morning, I tapped the hub with a brass drift while a partner turned the sheave with a pipe wrench, and it popped free after a few tries. Has anyone else found a good method for this that doesn't risk messing up the shaft?
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thomas1056mo ago
Sometimes the shaft itself gets a slight bend from years of load. That distortion can create a high spot that locks the hub in place. Checking runout with a dial indicator before forcing anything can save a ton of grief.
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