Question about Craftsman 20 Hp 42" Deck Lawn Tractor

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Replaced blades on Craftsman 21.5 HP B+S engine Model 91-7272460

I replaced the 2 blades after sharpening them , now it does not cut the grass , seems like the blades do not spin.

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  • Dwain Pippen May 11, 2010

    You didn't say whether or not you had been using it previously. Was this the first time you tried to use it this year?What happenes when you push the engagement lever up on your dash? Is you belt on your pulleys? With your engine OFF, kneel down and look at your deck while you, or someone else, engages the lever on your dash. Does that tighten up the belt? The right side idler pulley should move toward the rear of the deck to tighten up the belt. The arm that the pulley is on has a pivot point and may be rusted and not be moving. Some things to check. Let me know what you find

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You might want to check this may sound silly but check to see if the blades were put on upside down.

Posted on May 17, 2009

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