Randu,
Which BH do you have? And which thumb (before it was hydraulically-modified)? I have the
BH77, with the Kubota mechanical thumb.
*** I have a
BH77. The thumb is the mechanical one sold by Kubota, so it looks like we have the same stuff so far!
Did your hydraulic modification process change the geometry of your (I'm assuming) once-mechanical thumb? Because, if not, and IF you have the
BH77 with Kubota's mechanical thumb (before your hydraulic mods) then I'm assuming your upcoming experiments could be directly relevant to my setup.
*** No, it didn't change the geometry at all. The cylinder I chose fit, though I did cut it apart to add a short spacer to make the retracted distance about 1/2 longer or so.
My first use of a ripper tooth would be to dig out the invasive roots of a nearby tree that have invaded half of our garden, so I was planning on being able to pick up whatever I ripped out, with the backhoe, and the ripper tooth/thumb combo--only the thumb of which, as I say, I have already.
To be honest,
I'd never even considered the potential problem of having the bucket no longer mating up closely enough to grab small stuff, after the installation of a BH quick attach setup (or similar "mating problems" with a ripper tooth, let alone
which company's ripper tooth). So, I'd be most grateful if anyone could point out any other potential issues I may have overlooked....
*** With the original 12" bucket, or any of the buckets I guess, the thumb mates fairly well and the sides of the bucket and thumb will grab even small branches (the smaller bucket best due to tighter lateral spacing). With the Bro-Tek ripper you can still grab larger things, roots and such, but the smaller stuff slips through the curved shape of the ripper.
So, I look forward to your findings....
*** I was planning to wait for others to go first too!
To All: Am I correct in assuming that the BXpanded BH QA, for the BX line of (smaller) BH's is NOT the same size/strength as would be applicable for my (larger)
BH77?
*** It would have to be a different model.
Many thanks, to all, including the OP.
My Hoe