Whether right-clicking and saving or just clicking to view with the plug-in, it downloads most of it (85% to 99%) and then just stops until it times out. All other .pdfs on this page (low res) and everywhere else I can find on the web actually, seem to work just fine.
I am able to successfully download the file to my computer without any issues. Could be an issue with your browser or the network connection. Please try with a different browser and see if the problem exists.