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Discussion Starter #1
Trying to stack rocks on a wall isn't working easily so this spring I've decided to buy a thumb.
I was planning in the Bro-Tek, and then I spied the BX expanded model.
The BX expanded does not unfortunately make a thumb for the 46, but after looking at its design it got me second guessing my decision.

My question is about how the Bro-Tek uses a top link to attach the toothed portion (Technical term) to the backhoe boom, after comparing it to the BX Expanded style I am wondering if it is robust enough? I'm thinking I might crush/bend the top link if I should curl the bucket back a little too much? Especially since each rock will have is own unique shape/size.
The BX Expanded looks so much stronger with the square tubing.

I may try E-mailing the BX people to ask if there is any chance of getting one for the 46, but I am already doubtful.
 

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Trying to stack rocks on a wall isn't working easily so this spring I've decided to buy a thumb.
I was planning in the Bro-Tek, and then I spied the BX expanded model.
The BX expanded does not unfortunately make a thumb for the 46, but after looking at its design it got me second guessing my decision.

My question is about how the Bro-Tek uses a top link to attach the toothed portion (Technical term) to the backhoe boom, after comparing it to the BX Expanded style I am wondering if it is robust enough? I'm thinking I might crush/bend the top link if I should curl the bucket back a little too much? Especially since each rock will have is own unique shape/size.
The BX Expanded looks so much stronger with the square tubing.

I may try E-mailing the BX people to ask if there is any chance of getting one for the 46, but I am already doubtful.
I doubt you would bend the link on the Bro-Tek, but the problem I see with it is that there is limited ability to set the distance of the thumb from the bucket. The BXpanded model has numerous settings by way of the pin to set the distance of the thumb to the bucket. I have the adjustable thumb on my 270B and do find myself using the different settings based on what I am picking up. Maybe I am not familiar enough with the Bro-tek model to see there is more adjustability other than the threaded length of the top link. You might consider this as a factor in making your selection. Seems like it would be a tedious and time consuming task to adjust the length of the top link each time you desire a different thumb setting....

Sincerely
 

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Discussion Starter #3
Homesteadjoe would you be constantly geting on and off the tractor to readjust the Bxpanded model when picking up things like rocks of different sizes?
 

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Homesteadjoe would you be constantly geting on and off the tractor to readjust the Bxpanded model when picking up things like rocks of different sizes?
Not every single time, but yes, each time that the bolder size difference was sufficiently different, you would likely change the setting. For example, a 12" diameter rock might be a different setting than a 18" or 20" boulder..... and depending if your intention is to precisely place the boulder somewhere you might need to make an adjustment more frequently depending on boulder size....

I tried getting a hydraulic thumb for my 270B but no one makes that. I would like in the future to modify my thumb to make it hydraulically actuated which would negate all this on-off for adjusting......

Sincerely
 

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Discussion Starter #5
Thanks for you responses Joe.
 
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Just rent an 8k mini-ex with thumb. Those go for about $250 a day around here.
 

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I have the 46 Bro-Tec thumb. Your not going to bend the rod on it. It will take you some getting use to. I called BX about your exact question. They had no plan to make one for the 46. I am not impressed with the BT but it does do the job I have used it for. Moving rocks and stacking them.
 

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BillieS is right, you’re never going to bend a Cat 2 top link with a BH 46 bucket pinching something.

That said the nature of the adjustment and the length/position of the thumb do somewhat limit its usefulness.

Honestly with a grapple, my thumb gets very little use.
 
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Discussion Starter #9
Never thought about the adjustment of that top link. I guess it would be slow adjusting it in or out, and getting on and off the tractor.
Funny I imagined that curling the bucket would put enormous pressure on the top link. Apparently not.

I the meantime I also E-mailed BXpanded asking about a thumb for the 46, it has been a few days with no response.
I need something to be able to place the rocks right where I want them on a wall(s) I can lift most of them ok with a bucket or my forks, but it's he last step the placement that I have the problem.
 
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260B backhoe thumb

Joe: I see now that you used Bxpanded….looks like what I will be doing....however I'd like to see the connection on the side with the pin holding bolt...looks like exactly what I need since I added the flange to my 260...tks Chuck
 

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Joe: I see now that you used Bxpanded….looks like what I will be doing....however I'd like to see the connection on the side with the pin holding bolt...looks like exactly what I need since I added the flange to my 260...tks Chuck
Chuck,
I have the John Deere Thumb Kit # BLV10023. Zoom in on this photo and see if it answers your question.

Sincerely
 

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