I suppose what I meant is that manuals have certain conventions.

Something along the lines of.....

Thank you and congratulations for buying the dogshit 301. This machine will give you years untramelled pleasure, improve the quality of your life, and by and large it is made by damn good chaps.etc blah blah blah Your statutory rights are not affected

and when a technological change is en train....

If previously you have been using a a role of selotape and a backscratcher for recording tv programmes.......

I may have overlooked these sections in the manual.