Here is a place that sells the manuals.....the book looks just like mine (mine also has the design cams) but mine is a 1720 ...probably the same thing tho.
http://pages.sewing-machine-manuals.com/173/PictPage/1920726272.html
Authorized reproduction Kenmore by Sears 1802 sewing machine manual (Machines name begins with Kenmore by Sears model 1800 to 1899) at Relics