1. Cut the zip ties holding the extruder assembly to the linear bearings.

2. Remove the timing belt. Replace if worn or damaged.

3. Carefully remove the extruder from the X axis. Make sure you are not damaging any wires.

4. Tear down the entire extruder by reversing the assembly instructions provided by Prusa.

5. All the printed parts will be replaced. Most of the electrical parts and fasteners can be reused.

6. Check all wires and connectors for possible damage especially where wires may have been bend or clamped too tightly.