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Cluster Gear Weakness


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#1 DH1 ONLINE  

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Posted May 11, 2014 - 09:17 PM

Thought I'd start a thread to find our exactly what the problem with the Cluster Gear is on the D series Bush Hog Tractors.

 

So what's the problem with it?

 



#2 sacsr OFFLINE  

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Posted May 11, 2014 - 09:26 PM

Daniel probably the better source, but from my observation, if the clutch is not correctly adjusted, and the rider forces the tractor into gear ( grinding it in) eventually the cluster gear is worn down to the point of no longer able to do its job. Seems it is easier to grind if into gear than adjust the clutch or possibly the yoke on the shaft to make sure it is working correctly. Below is an example of a good cluster gear and a worn down cluster gear.
image.jpg

Edited by sacsr, May 11, 2014 - 09:34 PM.

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#3 IamSherwood OFFLINE  

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Posted May 11, 2014 - 09:44 PM

Maybe caused by shifting while still in motion.

Big sticker on mine says that's a No No.


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#4 Texas Deere and Horse OFFLINE  

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Posted May 11, 2014 - 09:50 PM

Shifting on the move is the biggest issue along with the early models having a straight shift pattern. IMO..


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#5 superaben OFFLINE  

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Posted May 11, 2014 - 10:23 PM

Maybe caused by shifting while still in motion.

Big sticker on mine says that's a No No.

 

I'm with you, Will.  That is what happens to big tractors. 


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#6 JDBrian OFFLINE  

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Posted May 12, 2014 - 05:05 AM

No matter how sturdy things are made someone will always find a way to abuse it. Especially with a manual transmission. People think they are driving a car and can shift it the same way.


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#7 Bolens 1000 ONLINE  

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Posted May 12, 2014 - 08:55 AM

Same thing with the Bolens Cluster gears......

99% of gear failure is due to user negligence shifting on the fly and not having the clutch adjusted properly.


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#8 olcowhand ONLINE  

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Posted May 14, 2014 - 01:35 PM

Also, if the shift fork shaft isn't adjusted properly, the indexing detent will hold the cluster gear partially engaged to the driven gear below.  I've seen one that was worn to an angle due to only being 1/2 way engaged from the detent shaft out of place.  The detent shaft screws in & out to center the cluster. I think most of the sheared teeth are simply as has been said, shifting on the fly.


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