Try Sears service center. (they might or can make you a copy)
craftsman edger 536.797521 user manual
A person can get an owner's manual for a Craftsman lawn tractor by contacting the Craftsman company. The phone for customer service is 1-888-331-4569.
probably craftsman.com
http://userguides.50webs.com/
Your owner's manual should explain that.
Not on the Internet,apparently.
There are dozens of different models of Craftsman riding mowers, with a different answer for each. You need to get the owner's manual for YOUR mower (you can get it on-line for free) and read the manual.
to fix a sears tractor
Did you ever find or receive an answer on getting a manual- I can probably scan the manual if you still need it
look online or go to sears
If you need the owner's manual for the Craftsman lawn tractor model # 917.270940, find it at http://www.disruptit.com/manuals/L0060081.pdf. Best of luck.
You can download manuals for some Craftsman equipment on Sears website. You will need the model number. Go to: http://www.searspartsdirect.com/partsdirect/index.action?sid=PSHx20080114x00001aand put in the model number. If there is a manual available you can download it there.