I Broke the PTO on my 2305 - UPDATE

   / I Broke the PTO on my 2305 - UPDATE #1  

johnnydel29

Bronze Member
Joined
Apr 24, 2007
Messages
91
Location
East of Albany, NY
Tractor
JD 2305
Fist of all I want to thank all of you for your input, this site is great.

I also have to say, I learned that buying from a good dealer that provides excellent service really counts - even if he is a couple hundred bucks more than the other guy.

The dealer was quite surprised that this actually happened (like myself and everyone else that owns tractors), it is not very common for the PTO to break before the implement. He said that this occasionally happens with PTO driven tow behind implements when making really sharp turns.

They immediately came and picked up the machine and the brush mower. They did a complete evaluation of what could of possibly happened - why didn't the shear pin or the gear box break on the mower first?? They found nothing faulty with the set up (length of shaft on mower, grade bolt used as shear pin, connections etc.). By noon the same day, I got a call and was please to find out that Deere is going to fix the entire PTO unit under warrenty!! I was quite relieved, this could of cost me thousands of dollars. I am really pleased with the way my dealer handled everything - he promised that he would try to do everything possible to get it repaired under warrenty, and he did. That is truely outstanding service!!

Now - I am really trying hard to figure how this happened. I went to the exact location. It was a slight slope, and found the stone (which was not that big - hit bigger ones many times before). I am thinking maybe somehow the shaft lengthend as the mower sawed slightly sideways going down the slope and hit the stone?

I am a little concerned now - I do not want this to happen again.

What can I do to prevent this from happening again?? Pethaps switching to a thinner and lowest grade possible shear bolt (1/4" versus 1/2").

Again - I am not sure what else to look out for - I have done this many times, but now I am a little paranoid.

And lastly - like I mentioned in my previous post - although I was devasted when it happened, it can be(and will be) repaired. Somethings in life cannot be replaced, so it was not the end of the world. Keep that in mind.
 
   / I Broke the PTO on my 2305 - UPDATE #2  
putting a 1/4" bolt in a half inch hole will wear the hole out and shear way to easily. Once the hole is oblonged, then even the half inch bolt will shear too easily as the play in the hole will increase the shearing force.

I would chalk this up to being one of those freak things that just happen for no real reason. When the tractor comes back, go to the same exact area and go thru the same motions at the slowest speed possible and watch the pto shaft to see how it reacts. If you notice it starting to bind then stop. If you are going slow enough you should not have any problems but then you will have found out what happened. If you don't notice any binding then put this whole thing behind you.
 
   / I Broke the PTO on my 2305 - UPDATE #4  
A good dealer is always worth a few extra bucks! :) Glad it worked out!
 
   / I Broke the PTO on my 2305 - UPDATE #5  
johnnydel29 said:
What can I do to prevent this from happening again?? Pethaps switching to a thinner and lowest grade possible shear bolt (1/4" versus 1/2").

Nope...get a slip-clutch and keep it adjusted. Problem solved and peace of mind, too...
 
   / I Broke the PTO on my 2305 - UPDATE #6  
Glad to hear it's a warrenty job!! There must have been something mechanically wrong with the PTO. But it's always good to hear that the dealer will do the work without whining about 'improper use'.
 
   / I Broke the PTO on my 2305 - UPDATE #7  
That is one h**l of a dealer--take them some pizza when you go pick up your machine--and get a slip clutch.
 
   / I Broke the PTO on my 2305 - UPDATE #8  
I think it was one of those freaky instances. Either go on mowing the same as befor or get a slip clutch for the mower. Probably about $100.
 

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