Could not find the manual for my Snapper model 28106s, but while searching your site I was checking out the manual for a type 6 mower and discovered that on the face of the manual it states "The series number is the last numeral(s)? in the model number." I do not know how many models this applies to, but wanted to share this info with the people who do not find the manual with their exact model number. Please share this with your other members. Thanks, Bill Ames