Top and TIlt, additional stress on 3pt attach pts?

   / Top and TIlt, additional stress on 3pt attach pts? #1  

goneandbrokeit

Silver Member
Joined
Jan 26, 2006
Messages
198
Hi, Just wondering if anyone with top & tilt thinks it adds addition stress to the 3pt attachment points? Here is why I ask...

1 - Considering T&T for use with L3830 and box blade.
2 - I broke one of the "rings" that the hold the attachment pin for my right side lower hitch arm ( this is a casting that I believe would require the tractor to be split to be "officially fixed". I would like opinions on the strength of the repair that was done and if it would hold up to the T&T.

Here is the back story. While switching over from BH90 to box blade, I put the pin in place but neglected to bolt it in. Set the top link short and the scarifiers down and had it aggressively tilted. Went to work till I noticed the BB was not going down, get off and look and notice the sway link is bent almost 90 degrees and hung up on the BH frame.
As I am scracthing my head I notice the broken off piece of casting and the pin laying on the ground. Dumbfounded, I wander back to the barn where I see the bolt on the work bench, case of faulty owner not the tractor's fault.
Around this time my 80 year old neighbor rolls up on his golf cart. After a the usual chit chat, I say "I am having a bad day" and hand him the broken casting. He rolls it over in his hand says "Where's this from?", I tell him, he looks under the tractor and tells me I have a load of trouble as if I didn't know.
Tells me probably alot of $ to get that fixed, but hold off he may know someone who could take a look. And he goes on his way, only to show up that evening to see if he could have the part to show to his friend.
The next moring he stops by around 8 o clock and ask me what time I got up, I tell him 6 and he says that's early but I've been up since 4. Tells me he couldn't sleep because he was thinking about my tractor and the sad expression on my face. He hands me the broken casting that he has milled and drilled to resemble the lower half of a connecting rod along with stainless steel bolts and spacers machined to match.
He then vice gripped it in place, commands me to drill to holes which he promptly taps and bolts it on. Tells me I am set to go. It is kinda like looking at the bottom of a connecting rod ( By the next week he had sway bar straightened and and sliding almost like new).
The repair has held up to moderate box blade use and use with the rotary cutter. Any opinions as to the strength of this repair and if T&T would stress it?
It seems like the bolt that was originally left out takes alot off the load anyway, this part of the casting was not damaged in anyway.
Sorry for the long post.
 
   / Top and TIlt, additional stress on 3pt attach pts? #2  
</font><font color="blue" class="small">( The repair has held up to moderate box blade use and use with the rotary cutter. Any opinions as to the strength of this repair and if T&T would stress it? )</font>

Honestly, I don't know enough about your tractor to comment on that, but I can tell you that you have one "jewel" of a neighbor. What a guy! /forums/images/graemlins/cool.gif
 
   / Top and TIlt, additional stress on 3pt attach pts?
  • Thread Starter
#3  
You got that right...I thought I was buying a place in the country to get away from it all. What I ended up with is a good friend.
You read a lot of posts about awful neighbors, I hit the lottery in this respect.
 
   / Top and TIlt, additional stress on 3pt attach pts?
  • Thread Starter
#4  
</font><font color="blue" class="small">( I don't know enough about your tractor to comment on that)</font>
Jim,
Just asking if you thought I described the repair clearly enough for anyone to answer provided they are familiar with the 3pt set up on a L3830?
Would pictures help?

The piece that broke of is cast iron.
 
   / Top and TIlt, additional stress on 3pt attach pts?
  • Thread Starter
#5  
Attached is a primitive drawing of the area in question and the repair.
 

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   / Top and TIlt, additional stress on 3pt attach pts? #6  
I only have a hydraulic top link on my L3130 but I can not see that it or a side link add any extra stress to the 3pt system. I need to go out and look at my tractor to understand exactly what was done.

Vernon
 
   / Top and TIlt, additional stress on 3pt attach pts? #7  
I took a look at my L3130. Since the pin is seated in the outer ear it is not carrying the total load. I think that you were fortunate in the manner of the break and in your neighbor. You really have few options so run with it.

Vernon
 
   / Top and TIlt, additional stress on 3pt attach pts? #8  
Just an opinion, probably worth all of 2 cents... your repair is probably not quite as strong as before, but it's probably adequate for reasonable use. I am not an engineer but would guess that those tapped screws don't pass the load to the main rear axle casting quite as evenly as the original design, so there may eventually be a fatigue failure in the axle. Anybody's guess whether that would be next month or 20 years from now, but, obviously, the less you beat the snot out of it, the longer it will last.

By the way, I have the same pin setup on my tractor, and I can easily see how you could miss the bolt when changing over from the backhoe.
 
   / Top and TIlt, additional stress on 3pt attach pts? #9  
The only place that you might put stress on your tractor is at the top link bracket behind the seat if you use your box blade in reverse. Several threads/months ago some one posted about having this disaster of ripping the bracket off (with pics). I purchased a Kubota re-enforced/heavy duty bracket for my L3400.

I have the top and tilt sytem and using it with the box blade to cut swales and clean the ditch makes seat time really enjoyable.

I just ordered the W.R. Long Root Rake for another "Toy". Now I can use the excuse to ignore the wife because I have soooooo
many levers to keep my mind on Heh Heh!!!!

"IF it doesn't Fit, Force it, If it Breaks, Then it need fixed anyway!

jw5875
 
   / Top and TIlt, additional stress on 3pt attach pts? #10  
Stainless bolts will have a tendency to stretch under extreme loads. I would sugest that you replace them with grade 8 bolts and locktite them in place with 242 locktite. All in all, a good method to repair a broken casting.

ron
 

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