Swisher 60" riding mower deck belt breaks. I have put three new belts on this mower and they break after mowing about 15 minutes. Have checked pulleys and routing. Would appreciate any suggestions.
Even though the routing is correct, have you checked that every spindle and idler pulley turns freely? These bearings can freeze up or bind because debris builds up in them. Also, if the bushings on the idler pulleys can wear, causing them to misalign. Keep checking. Also - is the belt snapping clean, or do you see a burnt, worn spot?
Testimonial: "Thank you for your help. The belt is snapping clean. You are correct in your assessment to what the problem might be. We checked all the above and did not correct problem. We put three washers on top of small idler pulley to bring it down and better align routing. Bought heavier belt at auto parts. Believe the bolt head was touching belt where it routed throught to larger idler pulley."
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I am having same problem with 60" Swisher,83" deck belt keeps breaking,seems to turn then of course only a matter of time untill it breaks
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