3-Point Hitch Kioti KB2085 Backhoe Attach Point

[Four20]

Thanks Jon for the advice. The attach point will stay unconnected. I didn't think about it making it too ridgid. I'm glad I asked about it before actually doing it & breaking something!

 

[dfkrug]

Keep in mind that the backhoe is not a ridget mount to the tractor so you will get a little movement.
Have someone stand beside you and watch the subframe move while you put down pressure on the backhoe and they will have a good view on what is moving.

What? I suspect that Kioti INTENDs for their subframes to be rigid
mounts to the tractor. Movement of the hoe independent to the
tractor (occurs with lots of subframes out there) is due to flexing of the
steel and/or wiggling of the pins. The most rigid subframes use a lot
of steel, and bolts instead of pins. Instead of bolts, some integrated
TLBs use a complex mechanical linkage that takes up pin slack so it can
be mounted quickly but not suffer from pin wiggle.

Having someone watch for flex while operating the hoe is how to best
see where the problem is, I agree. Works for loaders, too.

 

[Four20]

So dfkrug, do you think the attach point needs to be hooked up?

 

[dfkrug]

So dfkrug, do you think the attach point needs to be hooked up?

Some subframes make use of the existing toplink attachment point on the
tractor. It seems at least the Kioti 2375s I have seen do not. If an unused
toplink attachment is available under the seat of the hoe, it could provide
a more rigid attachment to the tractor. I differ with Depratt on this one....
I think a more rigid attachment is better for the tractor, hoe, and subframe.
His statement is quite a surprise to me.

If there are any official written statements by any of the CUT manufacturers
stating that more rigidity is bad, I would like to know. It is possible that the
Kioti engineers designed the subframe to flex, but I doubt it. Anyone?

 

[laurencen]

My thaughts are flexing is better than ridgid as it will absorbe shock, my CK20 backhoe flexes lots, I welded the plates and mounts on the subframe as the bolts allways came loose, Not sure if they would have designed it this way, had it been too flexible the subframe would have bent perminently, the subframe does look a little light but as most on this forum we would build heavy not engineered

 

[dfkrug]

It is really a matter of cost. I have been reassembling my Kubota B21
after a complete rebuild, and I just remounted the backhoe subframe.
This is a 2000# tractor, like the CK20, but it is designed with backhoe
use in mind. I do not expect to see ANY visible flex with this tractor.
That said, I have spent 2 hours getting the B21 subframe on, as it requires
exactly 50 grade 8 bolts to attach to the engine and rear axle areas.

 

[VictorW]

I have a KB2375 for my CK30hst. Yes, it does flex and an extra attachment point would be nice but I don't think the 3pt mount on the tractor is strong enough to handle the load that could be put upon it from the bh.

 

[dfkrug]

I have a KB2375 for my CK30hst. Yes, it does flex and an extra attachment point would be nice but I don't think the 3pt mount on the tractor is strong enough to handle the load that could be put upon it from the bh.

Well Woods and others have been building backhoe subframes for a long
time, and their older style features a similar setup to that used by Kioti's
2375 on the CK30, yet the Woods subframes utilize the toplink connection
to further stiffen the hoe attachment. I have attached a typical older
style Woods subframe shot, this one is for a Kubota L3010. The ruggedized
toplink can be seen, along with a fairly beefy ladder-style subframe. Woods
has been gradually moving towards more rigid subframes....their 4-pt
style, but the older style is still sold.

As another illustration, Kioti's 2376 hoe has a more subtantial subframe
than the 2375's, but it only fits one Kioti tractor.

Although I do not favor using hoe attachments on CUT 3-pt hitches, using
a rigidly mounted lower subframe PLUS a beefed up toplink is a proven
and common method of attachment. I have not heard of any broken
tractors using this method yet.

 

[Four20]

Thanks for the input and photo. I was also wondering if the toplink attachment needs to be special like the one in that picture. That looks like a really stout subframe too.

 

[VictorW]

Although I do not favor using hoe attachments on CUT 3-pt hitches, using
a rigidly mounted lower subframe PLUS a beefed up toplink is a proven
and common method of attachment. I have not heard of any broken
tractors using this method yet.[/QUOTE]

I'm sure the back end of the tractor can handle the load but the top link mount itself on the CK30 just doesn't look that strong. It's bolted on well but the flanges appear a little on the thin side. That's the only part I was questioning.