This file is the starting point for each respective chapter. As also mentioned earlier, it is advised that even if you choose to download certain chapters, also download chap1.exe, because this file contains the searching subdirectories and files. Two things need to be done before proceeding. Now select Open. In the Available Indexes dialog box, there should be a Dual Unit PDM Index.
Fit width is the recommended magnification to view the manual in.
You may select other magnifications to determine which you prefer. Once you've performed these two steps, close Acrobat Reader entirely and open again. You are ready to use the manual. These links are denoted by blue text. Clicking once on the links will take you to the material referenced.