How to disassemble an HSC90?

Hi, has anyone of you ever disassembled an HSC cabinet? I am looking pretty stupid right now. It's not the first piece of DEC iron equipment that I have moved in pieces, I did two VAX6000 and one TU81+. But this one is different. While being half-height like the TU81, it's quite a bit deeper. The side-walls appear to be just locked at the bottom and then hooked such that one can lift it up and off, like the TU81's side walls. However, they do not move no matter how hard I try. I don't find any screws holding them, though. And with the sidewalls on, I cannot remove the top-cover either. So, I was hoping I could at least take it into two pieces by moving the whole core out in one piece. Apparently that central unit is just screwed on the front, like a rack-mount device. Indeed I can move it out quite far. But then it stops at a protruding piece of the backplane circuit board! There seems to be no way to move that core all the way out other than by removing the backplane circuite board. And I'm not going to do that. Other DEC equipment was quite straight forward to disassemble, but this one beats the auto-assembies in difficulty level. I appreciate every advice. My suspicion is that the sidewalls are indeed removable, but mine are just stuck. Someone seen it? regards -Gunther -- Gunther Schadow, M.D., Ph.D. gschadow(a)regenstrief.org Medical Information Scientist Regenstrief Institute for Health Care Adjunct Assistant Professor Indiana University School of Medicine tel:1(317)630-7960 http://aurora.regenstrief.org