Users Manuals are in Adobe Acrobat .PDF Format.
Choose save to disk. Larger files can take 5 minutes to download.
Download the Acrobat reader  if you don't have it already. If you get errors trying to read the .pdf files you may need to download the latest version of the Acrobat reader.

 Problem:
File downloads into your browser.
Solution:
RIGHT click on the link and choose "Save..."