Recently, the belt in my Bamar genoa electric fuller ruptured while furling in.Opening the box, I realized both sheaves had to be replaced. Here comes the hard work of extracting these little guys.Bamar tells you to lever them out with the help of two screwdrivers.Good luck!!After a good three days of hard work, plenty of penetrating WD40, and runs to local hardware stores, I finally succeeded in pulling them out.Why was it such a hard job?Can’t explain as the axel on which each each sheave is fitted was perfectly smooth and clean.No rust.So, it’s just a faulty design on Bamar’s part.Just another one.