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Old 12-19-2016, 05:55 AM   #4
O C Diver
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City: Fort Myers, FL... Summers in Crisfield, MD
Country: USA
Vessel Name: Slow Hand
Vessel Model: Cherubini Independence 45
Join Date: Dec 2010
Posts: 7,900
Replace the set screws. They should have a hollow point to bite into the shaft. The crown of the point is probably blunted down and not biting in. If the sheave is moving on the shaft, clearly the set screw isn't doing its job. That application may also require dimpling the shaft with a drill bit through the set screw hole to give the set screw a larger contact area.

Ted
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