Bummer!
Since I'm loafing on a holiday weekend I tried it also. I was able to get to your piece of equipment, although it was labeled an AD 3 vs an ADL, so there are probably slight differences. Anyway, my guess is the 3 computers you tried do not have the software Adobe Acrobat, or an Acrobat "Reader". The info on their equipment was produced with Adobe & are in .pdf format. Most web sites will tell you this & provide a link to get the reader. You can download the free reader here:
http://www.adobe.com/products/acrobat/readstep2.html
So the page "seems" to stop working at that point because the link is looking for your Adobe to open it, to show you the page. These are big files so if you are on a slow connection even if you have the program, it will seem to stop even though in the back ground the .pdf file is actually opening, it just doesn't really show anything on the screen while it is doing so.
The info on that link is just the sales "brochure" about the equipment, and at 4 pages long contains a lot of info actually. You will still need to contact them or one of their dealers directly to get the stuff you are looking for. Good luck.