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post #1 of 4 Old 05-11-2019, 09:31 AM Thread Starter
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30048s mower deck belt problem

I have replaced the deck belt on my 48inch side discharge deck for my st160. after installation, I noticed the belt was twitsted on the front pully attached to the engine. the pulley is a v pulley but the belt is running on its back side around this pulley. I have tried to untwist it twice, its seems to be correctly around the various pulleys and idlers etc.

after I run the deck, it again is flipped on that front pulley. It may have been running like this for a long time and I just noticed.

any thoughts? this is a long belt, lots of pulleys. I wonder if there is a manual on belt installation?

thanks

Ed
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post #2 of 4 Old 05-13-2019, 07:44 AM
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I don’t know your particular mower deck, but generally if the V belt is flipping over there is misalignment of one or more of the various sheaves or Idler pulleys. Could be either from worn bushings / bearings or bent idler arm.
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post #3 of 4 Old 05-13-2019, 09:03 PM
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Re: 30048s mower deck belt problem

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post #4 of 4 Old 05-14-2019, 11:42 PM Thread Starter
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Re: 30048s mower deck belt problem

Thanks for the feedback. this is a long belt at 167 inches. I will go over all the pulleys and see what I find. I also read that if a
belt comes off it can develop a bend or twist so I am going to try a new belt also.

I wonder if anyone has an owners manual for this deck? I want to see what the spec is for belt tension.

Ed
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Old 05-15-2019, 02:36 PM
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