...Basically a stripped down version of the JD 110 TLB...
Although it has a similar Yanmar engine as does the JD110, I don't see anything else it
might share with the Deere. It did compete in the same segment, smaller industrial TLBs.
AUX valves were optional, as I recall.
I knew the CBL40 has HST drive, and a 2-pump hoe, but doesn't the implement hyd pump
that powers the FEL also power the hoe?
I am not a fan of bolted-on thumbs, and esp not a hyd one with all that force at your
command.
As I pointed out near the beginning of this thread, I would get a welded cyl of the same
diameter as your bkt cyl, and design the thumb around it. That way, you do not have
to modify the cyl, and you can decide where to put the thumb pivot to achieve
the open/closed geometry you need. You have to fabricate a thumb anyway.
On that machine, I would use pivot pins of 1.5" diameter and 1/2" plate steel.