The hose on our Dyson DC03 has split right next to the plastic collar that the attachments fit into. It ought to be an easy job to detach the hose from the collar, shorten it by a couple of inches, and reattach it. But I can't get it out.
In this picture you can see a promising-looking tab-in-a-slot below the green button, and there's one the same on the other side. I've poked them hard in every direction but I can't get them to do anything useful.
Ideas?