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Small Engines (Lawn Mowers, etc.)/How ro adjust drive belt for deck

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Question
I have a Sears Craftsman lawn tractor 19HP 42 inch model 717.270771. The blades are not rotating fast enough to cut the grass. the deck belt seems ok and the spring load tensioners are fine. There must be another belt that drives the deck pulley.  How do you adjust it. Can you refer me to a sketch or picture of that drive assembley. Thanks.

Answer
Is the model number a 917.270771?  If your model number is 917.270771 then you can find the manual at the address below.

http://www.searspartsdirect.com/partsdirect/part-model/Craftsman-Parts/Riding-mo

Eric

Small Engines (Lawn Mowers, etc.)

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Eric A. Jones

Expertise

Lawnmower Repair . Certified Master Service Technician from B&S. Have 23 years experience on B&S, Lawn Chief, Weed Eater, Echo, Peerless, Wheel Horse, Snapper, Atlas, MTD, McCulloch, Homelite and many other numerous brands. Specialize in electrical repair.

Experience

Born and raised in the midwest. Started tinkering with engines when I was about 14 on my Suzuki RM-80. I began lawn mower repair at a small hardware store. I knew absolutely nothing. I read lots of repair manuals and met an older fellow who taught me many lessons. I continued working on small engines through high school and paid my way through college working on mowers at the same hardware store. Decided to get away from the midwest and mower repair so I joined the Air Force. I repaired air traffic control electronic equipment and ended up in Hawaii where I got a part time job at Small Engine Clinic. I gained a lot of experience from the Small Engine Clinic and had a blast repairing small engines. I then took the Briggs and Stratton Master Service Technician test and earned my MST. I then traveled to Wisconsin where I attended the factory update training seminar and received formal training. Continued working on mowers part time as I completed 20 years of military. Retired from the military on a Friday and continued in the lawn and garden industry the next Monday.

Education/Credentials
MAS Aerospace Operations BA Mathematics AAS Electronic Communications AAS Electronic Technology

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