Throwing deck belt

sdpaversr

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May 28, 2024
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I have a 2009 LT1050 that I can't keep the mower deck belt on. I took it to a repair shop where they replaced all pulleys and spindles plus put a stronger tension spring on and it still wants to throw the belt off. Any suggestions?
 

StarTech

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Check the moving idler arm for excess play.
 

SeniorCitizen

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Check the moving idler arm for excess play.

That's the experience I've had with idlers . The stronger spring may have actually made the condition worse. Kill the engine with the pto engaged then take a look at the idler position to see if that sheave is parallel with the stationary pulleys .
 
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