Failed Stabilizer bars

[Sublifer]

One of the things missing out of the other thread was what model tractor you lost your stabilizer bars on and rather than tack it onto the end of that I thought I'd start a new thread.

My R4047 has had 4 stabilizer bar failures.

Two on the right snapped in half, the internal bar that is. At one of those points it must have damaged the left. It took some time to notice, but the part that slips over the pin was bent into a curve instead of flat. This actually may have been the first problem or happened with the first broken right one. I think the extra slop it induced may have led to the other failures. The 4th and final one was another right bar, the internal bar got bent upwards to nearly 45 degrees after pushing backwards with my boxblade.

I had been told that none of the pulling or pushing force is supposed to transfer to these bars but in order to get anything like that the setup would be so loose and floppy that they wouldn't serve the purpose of keeping implements out of tires. I think the extra pivot joints added to these might be part of the problem as well.

 

[Short Game]

I think the extra pivot joints added to these might be part of the problem as well.

Those certainly make getting them tight a challenge. I try to pull them as straight as possible before putting in the pins, while pulling the arm to me. I get them pretty tight. I've bent one once, early on, and I try to be as careful of banging the implement into stuff as at all possible. All I know is, straining and struggling to get them tight is a real test of my bad fifth lumbar. Doing that operation could easily end my work day for me.

All that said, would I prefer turnbuckles? No. Just as much of a pain in the lower back, messing with wrenches and locking nuts and turning the tubes. I change implements a lot. I would just feel better if the links were a little beefier. Like I said on the old thread, when these break, I'll build the new and improved version to replace them.

 

[Sublifer]

Short Game, what model tractor was that of yours?

 

[Short Game]

Short Game, what model tractor was that of yours?

2010 R4010.

 

[Taylortractornut]

Dads I 3040 has the same problems Even had a new set of the internal sliders made. Dealer says its from back blading with the box. Dad never had this trouble with any other tractor he owned before. I may buy a set of stabilizers from Kubota THey are tough dad had a 3130 with the big boxed stabilisers and no problems. I may make some sliders from some T1 in the mill a in a few days.

These have even bent with the finish mower attached.

 

[Willl]

after pushing backwards with my boxblade.

3pt setups are designed to pull, not push.

 

[hodge]

I make stabilizers for small kubota's, since Kubota doesn't. I found a real difference in performance of cold versus hot rolled steel- the inside rods could be hot, which doesn't have as much tensile strength.
Also, I think that within the system of the 3 pt hitch, if something is going to give, that bar is probably the simplest and cheapest to replace.
Are you bending them when you are backblading, and the blade rides up real high? I had a customer bend a set that I made, doing that with a bushhog- he admitted to it. It could be that there is a design limit that is being pushed.

 

[jlukem]

I too would prefer chains and turnbuckles versus the adjustable bars.

On my Mahindra I've broken both with the landscape rake due to the pushing and bending of the inner bar. Mine are now rewelded and I take care to make sure they are pulled on, not pushed on by keeping them tightly pinned.

-Luke

 

[Taylortractornut]

This was very light rear pushing, Ive owned several tractors and never hurt them back blading. We dont bulldoze with them just things like distributing the last of a little windrow. THe majority of the damage was from angling our landscape rake. The factory stabilizers a really soft I bent one by hand in a vice .

 

[Willl]

Are they being bent by compression ?

I mean they can only be under compression or tension ? correct ?