Chances are it's just rusted on or there's a rust ridge preventing it from
sliding over the shoes. I have about a 3 pound plastic hammer I hit them
with to knock them loose. What's that in metric, about 1.2kg? If they
break loose from the hub but still won't pull all the way off, you'll
probably need to remove the console and loosen the parking brake cable to
get enough play to remove the drums.