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Cub Cadet 86- Mowing Deck Belt Popping Off, Help Please


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#1 Titus OFFLINE  

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Posted May 12, 2014 - 09:40 AM

My 86 is giving me issues. Each time I engage the PTO in the front, with the mowing deck raised, the mower deck operates fine, once I lower it, the belt pops off the deck.

 

The checked the front, everything is tight. What would cause this? Thank you



#2 boyscout862 ONLINE  

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Posted May 12, 2014 - 09:50 AM

Misalignment of a pulley or the tensioner hanging up. Good Luck, Rick



#3 Titus OFFLINE  

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Posted May 12, 2014 - 10:05 AM

I did check the tensioner and that seemed to function fine. It moved freely, but I'll inspect it closer when I get home.



#4 JDBrian OFFLINE  

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Posted May 12, 2014 - 10:38 AM

Is the deck linkage lowering the deck straight. If the deck is shifting when moving down it would misalign the belt on the pulleys.


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#5 Titus OFFLINE  

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Posted May 12, 2014 - 02:33 PM

I'll snap a bunch of photos and post them this evening. Maybe you guys trained eyes will notice something I am missing.



#6 LTD OFFLINE  

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Posted May 12, 2014 - 03:46 PM

You are talking about the belt that goes from the tractor to the deck? If so, the deck probably isn't level. There are two "eyebolts" on the front of the deck that the undercarriage slides into. Those need to be raised or lowered. Most likely raised.



#7 Titus OFFLINE  

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Posted May 12, 2014 - 09:34 PM

Yes that belt. I see the bolts your referring too. Here's some photos. Sorry if their sideways, iPhone doesn't like this forum.

 

image.jpg image.jpg post-4216-0-77257900-1399948479.jpg



#8 Texas Deere and Horse OFFLINE  

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Posted May 12, 2014 - 11:24 PM

Peter, I fixed your photo. It looks to me that the front of the deck is angled low in the front.


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#9 LTD OFFLINE  

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Posted May 25, 2014 - 07:16 AM

It does look like its tipped toward the front. Those bolts look like the are taken all the way up, though. Does it mow to high if you let it down to just before where it pops off? That is what I had to do with one of my decks.



#10 jm4680 OFFLINE  

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Posted June 04, 2014 - 12:11 PM


jm4680
I have a Cubcadet and belt jump out of the pullies very frecuent. I replace it, and stiil foing it. Need help. Thanks

#11 cubx4 OFFLINE  

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Posted June 17, 2014 - 07:02 PM

Check your belt vin. It may be wrong or stretched. I went through the same thing on my restore.

Attached Thumbnails

  • 86redone 020_5hivqpri.jpg


#12 Amigatec OFFLINE  

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Posted June 18, 2014 - 05:53 AM

I have found that you need to the Cub Cadet pulleys and Cub Cadet belt with these. I tried after market belts and wasted money on them.

#13 Titus OFFLINE  

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Posted July 07, 2014 - 09:45 AM

Updating, the belt I've used for roughly a year without any issues. I hit one heck of a bump and then the belt popped off and continues too. 

 

I lower it fairly low and it pops off, same on the high side. Pops off no matter what. I feel when I hit that bump, something moved.



#14 Titus OFFLINE  

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Posted July 07, 2014 - 09:49 AM

In the 2nd and 3rd photo, see how the belt sits at that angle, is that correct? On the top pulley, the belt isn't fully seated on.



#15 MH81 OFFLINE  

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Posted July 07, 2014 - 01:16 PM

Take a few seconds and really study the mandrel where it goes thru the deck. Make sure it isn't tipping and causing an alignment issue.




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