Anyone have the Kubota backhoe quick coupler?

/ Anyone have the Kubota backhoe quick coupler? #1  

IslandTractor

Super Star Member
Joined
Sep 15, 2005
Messages
16,647
Location
Prudence Island, RI
Tractor
2007 Kioti DK40se HST, Woods BH
I am looking for information/photos/diagrams of the Kubota BH90 quick coupler or perhaps a QC from one of the dedicated Kubota TLBs. Anyone got one? I'd like to either adapt one or fabricate something like that for my Woods BH90x as Woods doesn't make anything like it. I can see that the Kubota ordering page allows you to specify that as an option for about $500 but it doesn't show any photos. Thanks
 
/ Anyone have the Kubota backhoe quick coupler? #2  
Woods does make brackets to make there hoe's a full frame. The 80 on a 3240 that I just took in trade has it and they were the first to have it for Kubota cab tractors. I would think for the cross on parts here you could get the woods frame for an L-4400 and be quite close if not virtually bolt on.
 
/ Anyone have the Kubota backhoe quick coupler?
  • Thread Starter
#3  
art said:
Woods does make brackets to make there hoe's a full frame. The 80 on a 3240 that I just took in trade has it and they were the first to have it for Kubota cab tractors. I would think for the cross on parts here you could get the woods frame for an L-4400 and be quite close if not virtually bolt on.

Art, are you referring to the subframe? I was meaning to ask about the quick connect for the backhoe bucket to quickly change buckets.

I found a part number BT4450 for the quick coupler that is designed for the L45 backhoe but cannot locate that part in Kubota's on line parts system. The BH90 apparently also has a bucket QC as an option as well and that is likely scaled closer to the Woods BH80x. I was able to select it for $647 list price as an option during my build my Kubota session. Cannot find further info however.
 
/ Anyone have the Kubota backhoe quick coupler? #4  
I have a L39 (american) and L45 (canadian) and the quick disconnect backhoe buckets are different because of the 2 countries. I had to change over the L39 to the canadian version so I can share 3 buckets between the 2 tractors. Picture 1 is the american version, picture 2 is the canadian version. By the way, the american version is better and easier to get on and off as you just have to pull one pin. The canadian version requires one bolt to come out and its at least a 1" nut.
 

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/ Anyone have the Kubota backhoe quick coupler?
  • Thread Starter
#5  
Thanks mbraday, are you aware of any part numbers or diagrams?
 
/ Anyone have the Kubota backhoe quick coupler? #6  
My 110 has what sounds like the Canadian Kubota quick coupler. You just have to take out a bolt which holds it in place.

View attachment 273804
 
/ Anyone have the Kubota backhoe quick coupler? #7  
Martian,

Yup, looks the same as the canadian version.

Island Tractor,

Sorry got nothing. To the best of my memory an 18" bucket was about 750 and the quick connect was also about 750 canadian. It's usually cheaper in the states. Any Kubota dealer should be able to get the part number and cost for you....

Mike
 
/ Anyone have the Kubota backhoe quick coupler?
  • Thread Starter
#8  
My 110 has what sounds like the Canadian Kubota quick coupler. You just have to take out a bolt which holds it in place.

View attachment 273804

Can you attach a receiver to any bucket to make it compatable or does that system only work with special buckets? I'm trying to find a design for a QC that will allow me to switch between my current standard bucket and my root ripper neither of which is a Kubota design. I was hoping to find a QC system that would permit me to build an adapter for each of my "buckets" and then switch between them. The bolt on design of the Canadian version is no problem. I don't need to switch on the fly from the cockpit. I'm just trying to avoid a one hour flail each time I switch out the implements as I then need to line up the main pin with four holes (2 bucket, 2 thumb and of course the dipper). It is a two person cussin' and bloody knuckles exercise currently so anything would be better.
 
/ Anyone have the Kubota backhoe quick coupler? #9  
It is a pretty standard design with most small to mid size mini excavators, so you just need the quick connect bucket. I believe John Deere sells the pin-on style to quick connect for the buckets, not sure whether their pin-on is the same as your's though.

You can see (sorry for the low-quality!) how the front pin runs all the way through, with brackets for the thumb on each side and the quick coupler for the bucket goes in-between the backhoe and the thumb. I only took it off once, but the entire operation took about 30 seconds to unscrew the bolt, uncurl the bucket and its dropped, and the reverse to put it on. Don't have to get out of the seat except to tighten the bolt. I would take some better pictures, but the tractor is at the cabin, so I don't have access to it.
View attachment 273806View attachment 273807

Here's the pin on to quick coupler information:
View attachment 273808

There's a good picture of the quick coupler bucket side here:
JOHN DEERE 110 LOADER BACKHOE UNUSED 30" BUCKET QCK CPLR | eBay
 
/ Anyone have the Kubota backhoe quick coupler?
  • Thread Starter
#10  
Thanks Martian. Could you please repost the link as that doesn't work. I'll study the JD system. Looks initially like I could weld some of the adapter pieces to my existing pin on buckets but I'll investigate further.
 
/ Anyone have the Kubota backhoe quick coupler? #11  
Looks the same as Kubota. You need the quick attach bucket(s) not the pin on and the quick attach coupler, thats it....
 
/ Anyone have the Kubota backhoe quick coupler? #13  
Thanks Martian. Could you please repost the link as that doesn't work. I'll study the JD system. Looks initially like I could weld some of the adapter pieces to my existing pin on buckets but I'll investigate further.

Is it the eBay page or the pdf that didn't work? Both worked just now for me. I'll repost both though:

eBay page (view of QC):
JOHN DEERE 110 LOADER BACKHOE UNUSED 30" BUCKET QCK CPLR | eBay

PDF (JD pin-on to quick-connect info):
View attachment 273815
 
/ Anyone have the Kubota backhoe quick coupler?
  • Thread Starter
#15  
I liked the style of this coupler and made one to fit my WOODS BH7500.

http://www.amulet.com/images/Mini-Hitch Coupler/MiniHitch.JPG

It works great and is a simple design.
You use your bucket as-is with no modification necessary.

That is the type of thing I am hoping to build but there is one big problem with that design: the locking pin is the rear pin and that is the one that I have trouble lining up because of the combination of bucket and thumb needing to be precisely lined up while supporting the weight of the thumb and stabilizing the ripper (note it has no flat surface. If there is something like the one you posted where the front pin is the locking pin that would work. I like the one Martian has posted but need to figure out what sort of modification to my existing ripper and bucket will be necessary or better yet, what sort of receiver plate I can build to pin on to the existing implements to make them compatable.
 

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/ Anyone have the Kubota backhoe quick coupler?
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#16  
Thanks Martian. The original links work now too so I think I was just having trouble with my computer earlier (thanks Hitman Pro and the devil to whomever developed TDL rootkit malware!).
 
/ Anyone have the Kubota backhoe quick coupler? #17  
The quick connect that I made stays on the backhoe dipper stick, you do not leave it on the bucket. Any of the standard buckets that you have (that should include your ripper tooth) should fit this system. You would attach the quick couple onto the dipper stick with your thumb just the same as you normally would for a bucket. Then you connect the bucket or ripper tooth to the lower set of holes in the quick couple. You would leave one pin in each bucket and the ripper tooth for the slotted hole in the connector. Once you pickup the bucket that pin will hold the weight of the bucket and you can easily align the second pin.

http://www.amulet.com/images/Mini-Hitch Coupler/INSTALL3.JPG

http://www.amulet.com/images/Mini-Hitch Coupler/INSTALL6.JPG

http://www.amulet.com/images/Mini-Hitch Coupler/INSTALL8.JPG

http://www.amulet.com/images/Mini-Hitch Coupler/INSTALL9.JPG

I hope these pictures clarify things .
 
/ Anyone have the Kubota backhoe quick coupler? #18  
If that Amulet works with the thumb, it might be a good option. Looks pretty similar to how mine's set up but with the pin in the back. Only think I'd question is if it would still be hard to line that back hole up.
 
/ Anyone have the Kubota backhoe quick coupler?
  • Thread Starter
#19  
Yes, those pictures clarify things. Now I see how the Amulet works. That would not cause any trouble with the rear pin as it would only need to be mounted once. The front pin has never been an issue especially as curling the bucket will let gravity hold it in place while pinning. I can always chamfer the pin edges a tad too.

The Amulet looks like a very workable solution at this point. The only downside I can see is that the added six or so inches of the thickness of the adapter will mean that my thumb will now be shorter than desired and will make picking up small items difficult. I don't quite understand the geometry and wonder if the adapter needs to be quite that tall. I guess if that is a real issue rather than hypothetical then I could always cut the thumb in half and insert a spacer.

Is the Amulet available for Woods BH90x pin sizes and mount dimensions? I checked out Amulet.com which seems to be a pretty new site as many potential links are not yet active. Is Amulet = BillyBobJimmyJoeJack????
 
/ Anyone have the Kubota backhoe quick coupler? #20  
L45 M59 backhoe QA 120718.jpgL45 12 in. QA bucket 120718.jpgAttached are a couple of photos of the quick coupler on my L45. As you can see from the tag it looks like the coupler on the L45 is the same as that on the M59 made by a Canadian company called H&H. They manufacture the L45 buckets also as all of mine have H&H tags too. I have spoken to H&H directly to see about other offerings for the L45 and they tell me they can only sell these buckets to Kubota which explains the exorbidant pricing. A buddy of mine has H&H buckets on his Cat 420D and his Volvo excavator so they make a broad range of products.

As MBradey points out the bolt on the L45 is a PIA. You have to tighten the bolt, then pound the wedge in and retighten some more. If you don't, like me, you may find yourself searching for the wedge and bolt that have worked their way loose and fallen out. I lost a couple of hours one day after several hours of loader work when I turned around to use the hoe for a while and the bucket fell off. The bolt had worked its way loose and it and the wedge had fallen out. After walking around for a while I called a friend with a metal detector and fortunately after about 45 minutes of looking I found the two of them ground into the dirt. Of course this happened on a Sunday of a long weekend but I'm sure the dealer would not have had a replacement anyway. My morning check now includes putting a wrench on that bolt and making sure it and the wedge are tight.

I preferred the B26 setup which did not require any tools - just removal and reinsertion of a pin similar to the L39 setup I think. I did not realize the L39 QA was different but maybe to increase Canadian content Kubota uses H&H north of the border. It would be interesting to see if a US based L45 user has the H&H setup or the L39 style. Martian's 110 also appears to have the H&H type of QA but I think more than one manufacturer uses the bolt and wedge setup so it may be a different setup. If you go the Kubota QA route, I know you can by what are called "ears" that you can weld on to your own attachments. When I traded my B21 for a B26, I kept the B21 24" bucket, cut the B21 ears off it, welded a set of B26 QA ears the B21 bucket and then removed the B21 teeth and I had a 24" ditching bucket for my B26.

I have seen excavators with the Amulet QA style and on larger machines the operator does not even leave his seat to change buckets. The pins remain on the bucket and there is a small cylinder between the two "U" shaped pickup points. They push a button to retract the cylinder, unhook and then hook the new bucket with the front U, curl the bucket and then extended the cylinder to lock the bucket in place. The one thing you have to watch with a QA setup is how it the bucket sits versus the manufacturer's pin on version. Some QA setups increase the spacing of the pins which gives you a little more reach but also affects the leverage of the hoe because of the geometry change.

Regards,

Lauren
 

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