MF 1835M loader support collapsed on tractor

[ruffdog]

Just a bad design as previously stated. Even if new replacement uprights were obtained, I would seriously look at some reinforcing to prevent this issue. I'm not a fan of these FEL mounts that have no supporting structure to the front of the tractor.

 

[5030]

Commercial backhoes are built a little differently than a 3 point hitch mount BH. If the tractor BH has a subframe mount it's all good however, if it's a 3PH mount with no subframe (like the picture shows), the game plan is much different and the chance of casting failure becomes much greater and that is why subframes are supplied with all OEM backhoes today.

Not that I have one because I don't. Did in the past but it's long gone.

 

[ruffdog]

Instead of just going through the tractor manufacturer, I would be reaching out to the loader manufacturer too. Maybe they would be more willing to work with the customer.

 

[Paystar]

Commercial backhoes are built a little differently than a 3 point hitch mount BH. If the tractor BH has a subframe mount it's all good however, if it's a 3PH mount with no subframe (like the picture shows), the game plan is much different and the chance of casting failure becomes much greater and that is why subframes are supplied with all OEM backhoes today.

Not that I have one because I don't. Did in the past but it's long gone.

Oh okay....I don't know anything about three point hitch backhoes. I would never buy one of those. Mine is subframe mount.

 

[Rustyiron]

This most recent (last 25 +/- years) breed of detachable loaders has lost the rigid forward support of the loader towers. This is great for engine access and service as there's always a pair of beefy metal components running out to the front with the "old style" but these 2 point mounts really puts the engineers to the test.
Searching for these pictures, it looks like Deere still uses this additional front support on the smaller models, but the Kubota is more typical of what I see on today's tractors.

These bars are down low but have to take the rotational forces to the towers.

This is what I'm calling the old style or design.

Typical of today's tractors. Imagine the load path and the difficulties that creates.

 

[sd455dan]

Is that suppose to be an issue? Anyways, there is another thread that I couldn't find the other day where someone in Australia also had the same breaking issue and he didn't have a backhoe.

View attachment 803450

Right,
SOP for full size TLB's
No way I would try it with a 3 point mount backhoe on a utility or CUT.

 

[5030]

Looking at the newer Kubota's, you are correct, they have no front facing steel to disburse the forces. Mine both do and yes, it makes servicing somewhat dicey at times, but still doable.

 

[sportscarclinic]

Front facing brackets that distribute the forces aren't necessarily a solution, they can just create more welds and service/inspection points that can possibly fail. The Kubota in the picture has only a couple highly stressed points of potential failure in the loader bracket. Obviously that's a very seriously engineered component. Manufacturers often add additional brackets, gussets and do-hicky's in order to avoid the costs of serious engineering. Instead, they bootstrap a solution that'll probably work most of the time as long as it's serviced and inspected regularly, which often doesn't happen.

 

[Rustyiron]

Doubling the inches of weld bead (forward support) and a straight on approach to the loading is usually the winner by distributing the load.
As for Kubota's design, I'm hoping it's highly engineered, that's what I have.
The portion that stays with the tractor is a large cast segment on each side and the rest of the "tower" is fabricated.

 

[Jstpssng]

Commercial backhoes are built a little differently than a 3 point hitch mount BH. If the tractor BH has a subframe mount it's all good however, if it's a 3PH mount with no subframe (like the picture shows), the game plan is much different and the chance of casting failure becomes much greater and that is why subframes are supplied with all OEM backhoes today.

Not that I have one because I don't. Did in the past but it's long gone.

I have a 3pth Woods 750 but will not put it on my Kubota again. I thought that as long as I was careful it wouldn't be a problem, yet there is also a lot of sideways stress and I don't need to replace the rear housing.

This is getting off topic but the OP hasn't been around to give us an update.

 

[aircommuter]

As ptsg has said it is a relief from the curl extend to the lift port of the main cylinders. It will prevent binding from the MSL or extreme back blading by relieving into the lift cylinder.
The Tank or return is from the valves. There is no return to tank from that relief.

Many loader valves have a cushion valve built in so if the operator lowers a heavily loaded buck then stops suddenly it won’t cause damage. They cut corners on the the little tractors a lot.

 

[Paystar]

Reminds me of a You Tube video I once watched from a Kubota dealer demonstrating the soft ride feature on a Kubota loader. First thing I thought to myself...."I would NEVER drive my tractor like that over rough ground!" LOL

 

[Jstpssng]

Many loader valves have a cushion valve built in so if the operator lowers a heavily loaded buck then stops suddenly it won’t cause damage. They cut corners on the the little tractors a lot.

When I stop lowering a heavy load suddenly it lifts the back wheels off the ground. As soon as I can afford new rear tires they are going to be loaded.

 

[arto98607]

I never really looked at the modern loader frames. I didn't know they made some with no nose bar. The nose bar on my Farm Hand loader would stop that from ever happening. Mine looks like this one, just not as pretty.

Yes the FEL nose bar is not pretty and is sometimes a pain, but it clearly does it's job!



Here's 1986 model with no loader frame support issues so far, and for sure it's been tested to max many times...

 

[Jstpssng]

Yes the FEL nose bar is not pretty and is sometimes a pain, but it clearly does it's job!

View attachment 803901

Here's 1986 model with no loader frame support issues so far, and for sure it's been tested to max many times...

View attachment 803903

View attachment 803902

How is the "box" between the loader arms? I broke that out on the Great Bend loader on my L275, and my father did the same on his Ford 4400.

 

[Olmstead]

It’s not very often you create stress points designed to fail.
Kinda reminds me of the BOAC airplanes with square windows.

 

[arto98607]

How is the "box" between the loader arms? I broke that out on the Great Bend loader on my L275, and my father did the same on his Ford 4400.

Mine is a Ford 770A loader and the box as well as rest of the loader are fine.

I wish Ford had stayed in tractor business because their designs were very good.

 

[paulsharvey]

Mine is a Ford 770A loader and the box as well as rest of the loader are fine.

I wish Ford had stayed in tractor business because their designs were very good.

Ford and Massey used to be kings for the 40 acre farmer; JD didn't take over till they figured out they are a bank first and a tractor dealer second.

 

[isdavyy4u]

Once again we get left hanging.
It's going to be like Yellowstone the TV series.
Come on let us know how Massey handled this?