Go BottomThumb attachment on bh75 hoe
 | burlbird7
Join Date: Jul 2005 Posts: 1 Nova Scotia Canada 
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2005-07-14 113450
I was wondering if anyone has attempted to put a thumb attachment on a small hoe like the kubota bh75? I think it would be ideal for picking up medium sized rocks, stumps and logs. I think you could bolt a plate with the thumb and pivot wings to the underside of the front arm above the bucket with a cylinder and a bypass valve at the controls.
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Add PhotoThumb attachment on bh75 hoe
 | Art White
Join Date: Jan 2000 Posts: 6898 Waterville New York 
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2005-07-14 113452
Some of the Kubota Excavators have thumb options that will fit on there other units depending on exactly the type of thumb you need. ....
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Add PhotoThumb attachment on bh75 hoe
 | earthwrks
Join Date: Dec 2003 Posts: 3853 Home Office in Flat Rock, Michigan
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2005-07-20 113701
I have a thumb on my mid-size backhoe. BTW you don't need a hydraulic hookup for a stiff or mechanical thumb which swings out of the way or can be removed when not in use---use the digging bucket as the "finger". Keep in mind that any extra weight on the hoe from a thumb effectively reduces the lifting capacity by the weight of the thumb and attaching hardware. There is a guy from Canada on e-bay that sells a weld-it-yourself kit for an 18" thumb which I have (it's a little short so it actually goes right in the bucket instead of meeting the bucket cutting edge) it cost about $235 inc. shipping.
Also, like my 25-year-old backhoe, unless the hoe was designed and built to accept a thumb be careful not to overload or stress the attachment point on the hoe stick itself---I squeezed and then started to cave in the hoe stick about a foot away from the bucket pivot using the supplied pivot point in the kit. DOH! And my hoe's box section at that point is about 6" x 8" with 1/4" wall. I had to reinforce or wrap three sides of the hoe with 3/8" plate 38" long--and it still wants to bend the hoe stick until the relief valve kicks in. ....
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