Loader bending metal on loader

[SPYDERLK]

Thanks for the illustrations.. I can see from the pics that the cylinder pulling (uncurl) would apply most pressure (for bending) on the dogs, while the cylinder pushing would put more pressure on the link from the top of bucket to the cylinder connection point.. thanks for the lesson on applied physics.

Exactly right. The nomenclature curl/uncurl is tuf to keep straight. I use the hand, palm up to keep it straight. Fingers come up to curl; go down to flat and beyond to uncurl. -- The cyls push to uncurl or resist curl.

That close pin spacing on the bucket carrier increases the range of articulation at the expense of greater stresses. It was cheaper than custom slightly longer cyls, but was not fully integrated in the design to preserve a comfortable performance margin. Expensive in the long run.
larry.

 

[ryansLS]

I went to the dealer to drop off my buckeled brackets. They had an R4047 in the shop there performing other work on it but they pointed out he busted up his links too. Looks like he actually snapped one of his sets in 2 and had to weld them back together. Other side looked like he pounded them out and reinstalled. The tractor had less than 300 hours on it and was ridden pretty hard by the looks of it. The R4 Tires were cut up and missing chunks. Guess he got on something like the rest of us did. They did mention the resist to curl or trying to curl and push as a link bender this time. So yes, it's happening and is an issue given the right circumstances. I guess I know what to watch for now.

 

[xtn]

Here's another pic of a loader set to back drag. If the cylinder piston is set to this position and doesn't move while back dragging wouldn't the force be transferred to compression on the dogleg?

Nope. As you back drag, the upper bucket attachment link does of course want to go up as you've shown with that red arrow. Imagine what would happen without the doglegs... That force attempts to push the ram up and away from the loader arm. Without the dogleg, the pivot point where the ram attaches to the upper bucket link would move up and away from the loader arm. So your red arrow pointing down on the dogleg is wrong.

Whatever cause those doglegs to bend was a force opposite to a back drag. Either curling up against something too heavy, or more likely having the bucket uncurled down as in your picture but catching it on a stump or something while driving forward. Gotta say I'm surprised all four of those links would bend without some serious damage to the bucket first.

xtn

 

[bbbmgo]

I have a LS U5030 with a LL5102 loader. I have bent or completely broken in two at least 3 sets of the curl or "c" shaped brackets (don't know what they are called) that attach to the loader. Is anyone else experiencing this? It seems to happen with very little pressure or at least it seems they shouldn't bee bending/snapping so easily. Does anyone know what they are called and perhaps a part number? I've had to get them through the dealer who has taken them off of a tractor he has in inventory so I haven't gotten a part number yet.

Here you go, Mahindra 4010. I just took it to the dealer and hope it's a warranty item. I will be taking a new part to a metal fab shop to make a couple replacement sets. I figure to make them of the same strength metal as to not break something else. I had an issue with a 3016 and bad metallurgy with a three point part, so it doesn't surprise me mahindra made another bad design/had inferior metal. By the looks of your loader, the mahindra is probably the same loader.

 

[ozley]

Here you go, Mahindra 4010. I just took it to the dealer and hope it's a warranty item. I will be taking a new part to a metal fab shop to make a couple replacement sets. I figure to make them of the same strength metal as to not break something else. I had an issue with a 3016 and bad metallurgy with a three point part, so it doesn't surprise me mahindra made another bad design/had inferior metal. By the looks of your loader, the mahindra is probably the same loader.

The LS loader is made by Amerequip
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[crotbc]

The pics show exactly what happened to our loader!

 

[ozley]

The pics show exactly what happened to our loader!

I would like to know what he was doing at the time they failed.

 

[SPYDERLK]

Again, I don't recall when exactly this happened but I'm guessing is was the pressing on the cedar tree. I had the bucket up high to get leverage and it was facing the tree pretty flush. I had the cutting edge of the bucket on it at first then I squared the bucket where the top and bottom where on the trunk. I think somewhere during these repetitive pushes in attempt to get the tree to lay over more is when the crumple happened. I wish I knew exactly what I did to make them kink but I don't. I found them after working the second half of that day. I recall backdragging once that day with the tractor and it was to remove old rotten logs that were about 8" in diamter and 3 ft long. All I did was lower the bucket just enough to roll them out of the bush where I was working. There's no way that did it.

I would like to know what he was doing at the time they failed.

A push of some sort. Something akin to the above no doubt. ... And may not have noticed immediately.

 

[bbbmgo]

A push of some sort. Something akin to the above no doubt. ... And may not have noticed immediately.

Your right, I didn't notice till it was in the barn, and a couple weeks later. Last I used it, I was popping roots, with forks, from a stump to get tree stumps out.

I had a 3016 prior and never had the catastrophic failures I have had with the 4010. It's a cheap design. The hydraulics on the 3016 connected directly to the bucket, whereas the 4010 uses these fast dump angle pieces. It's certainly a week point that the dealer wants to charge me 380$ for!

As soon as I get the hydraulic problem fixed (and this issue) I am going to put it up for sale. I can't stand Mahindra, when they want your money, their all over you. When you need them, they run. I have been waiting since April for a fix to a temperature problem. Mahindra said they are waiting for parts...I keep calling, no responses. NEVER AGAIN.

 

[Short Game]

As soon as I get the hydraulic problem fixed (and this issue) I am going to put it up for sale.

It appears that few tractor builders are making their own loaders. I mourned the weakness of the LS loader on my 41 HP as compared to the Woods/Cub Cadet I had on my 27 HP. I later got a 30 HP CC with a down-powered Woods loader. But, I can attribute my killing the front drive axle on the 27 HP to the loader overkill it had. One must be careful when making a battle between the loader structure and the pulling or pushing power of four wheels with traction and a pile of horsepower behind it.

Even though the curl seemed very weak to me on the LS, when the salesman suggested I manipulate the relief pressure, I resisted. In my estimation, the LS' loader is weak and certainly has a smaller reach than the one I had on my Cub Cadet. It seems clear that beefing up one thing increases the chances of failure in a different place, to be determined later. I am sure that tractors break less often for row-crop flat-landers than for big tree hill people. You just gotta learn to be smart (it's taken me some time).