To remove a stuck or broken taper-lock bushing, remove all set screws and insert one or two into the threaded "jacking" (removal) holes, tightening them incrementally to push the bushing out. If seized, apply penetrating oil, heat the hub, or tap the shaft with a mallet, ensuring the bush is not bound.
Steps to Remove a Taper-Lock Bushing:
Remove Screws: Remove all existing screws from the assembly.
Use Jacking Holes: Insert screws into the threaded jacking holes (usually one or two depending on size).
Tighten Evenly: Tighten the jacking screws alternately. This action forces the bush away from the pulley, releasing the taper.
Free the Bushing: If it remains stuck, gently tap the hub with a soft mallet. You can also insert a thin chisel into the split flange gap to pry it open slightly.
Remove Component: Once the tension is broken, the component should slide off the shaft.
Tips for Stubborn/Broken Taper Locks:
Lubrication: Apply penetrating oil, such as WD-40 or similar, around the shaft and bushing interface, allowing it to soak.
Heat: Apply heat to the outer hub to expand it, which can break the seal of a seized bush.
Use Proper Screws: Ensure you are using the correct, hardened bolts, as improper bolts may break off during removal.
Preventative: After removal, clean the shaft and components thoroughly before re-installing to prevent future seizing.
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