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2015 Ariens Riding Mower CVT issue


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#1 cjherbie OFFLINE  

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Posted April 11, 2016 - 02:19 PM

I have a Ariens A22VA46 riding mower. It was bought new in 2015.

 

It seems to loose power in reverse.  This model has a CVT, which I love except for this reverse issue.  While under normal operating load, reverse is quite slow, and the tractor will sometimes stop all together, especially when backing up a small incline.  The engine runs perfectly, which brings me to the transmission.  I'm wondering if there is a belt adjustment or some other linkage/travel adjustment that could improve its performance.

 

Has anyone had a similar issue with any wisdom they could share?



#2 EricFromPa ONLINE  

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Posted April 11, 2016 - 02:33 PM

CVT has no adjustments.Either your belts are worn or the spring came off (or broke off) the idler pulley under the tractor.

 

CVT are pretty bullet proof.

 

There is 1 long belt going from the engine to the back of the transaxle and 1 short belt going from the CVT pulley to the front of the transaxle.

 

Do you have full range of speed going forward even up hill?

 

 

Hey what do ya know.There is an adjustment on the rear CVT pulley.

 

Here have a look.adjustable tensioner just in front of the pulley.

 

s-l1600.jpg


Edited by EricFromPa, April 11, 2016 - 02:45 PM.


#3 cjherbie OFFLINE  

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Posted April 11, 2016 - 02:35 PM

Definitely not spinning the tires!  I'll check out the spring on the idler pulley.  But wouldn't that cause it to not engage at all?  It seems when I push the reverse pedal down, it travels at least 50% of its distance before I meet any kind of resistance in the linkages.  I haven't looked further, as it's a little difficult to see what all is going on on that end of the machine.



#4 EricFromPa ONLINE  

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Posted April 11, 2016 - 02:46 PM

Edited my post a bit lol.

 

Found a good pic of the transaxle.Shows an adjustment on the rear CVT pulley.

 

Never seen a transaxle housing made of plastic before.Not sure I like that very much.

 

That one sold on Ebay for $150 btw.Atleast there not going for $300++ like the hydros are

 

 

Worn belts cause them to engage lower on the pedal and it will slip more in reverse than forward.Just like the older MTD CVT transaxles.Takes more torque on the belts to pull something along than it does to push something.

 

 

Pull your battery and battery tray out and have a look at your rear belt.You can adjust it if need be but i'm kinda betting the rear belt might be worn.


Edited by EricFromPa, April 11, 2016 - 02:57 PM.

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#5 glgrumpy OFFLINE  

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Posted April 11, 2016 - 08:21 PM

That really IS an odd item there. Plastic housing?  Sure don't look like the stuff most of us work on here, I bet.  Just like new cars,  not for the old timers, ha!






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