Contact your local Sears outlet.
You can get it here:
Try searspartsdirect.com
The owner's manual for the Sears Garden Tractor model number 917255910 can be viewed on the official Sears Parts Direct website. This is an 18 horsepower tractor.
Th owners manual is at the link below, if that will help.
Managemyhome.com with your model number
Go to www.searspartsdirect.com and put in model number 917272220 (that is the model number of the LT 1750 Limited Edition Lawn Tractor). Search for the owners manual. If you register with the sears website you can download an adobe acrobat file (.pdf) of the owners manual for free.
Go to the sears web site and enter you model number they have PDf's for these.
Unfortunately the model number you gave it not listed any where. It looks like a serial number. The Craftsman tractor model numbers are like this example :- "CRCRA17542"
I have one...$ 25.00 plus shipping base60@gmail.com
go to http://www3.sears.com/ and order part number 165066
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.
An owner's manual for a lawn tractor like this can be found at any store selling farming supplies. It can also be ordered through an automotive part store.?æ