Custom hydraulic backhoe thumb

   / Custom hydraulic backhoe thumb #191  
Thanks Ron50. I feel bad that you're going through this via trial & error while I'm sitting pretty, waiting.

I agree, Amsung should have a stock cylinder & parts to make an option. In time, I hope I can return the favor somehow. I'm working on a few projects which may be of interest to you.
 
   / Custom hydraulic backhoe thumb #192  
My God, I have some catching up to do! I have not logged in a while. This thread is going like the Energizer bunny. You guys have been busy. FYI my Kubuta BH77 Hydro thumb (AKA Brian/DFK/BUMPERM) Hybrid was running strong right up until the hoe came off for winter so the tractor could go into snow service. Turns out we only had six inches of snow so far this winter. Last year, we had 104". Go figure.
 
   / Custom hydraulic backhoe thumb #194  
Great thread, lots of information. When I get my new to me/ used BH65 hooked up I plan on upgrading the thumb to hydraulics.
 
   / Custom hydraulic backhoe thumb #195  
The funniest thing just happened just as I was getting ready to quit working in my shop last night. (Actual work, I work from home, doing,...work stuff, but in a different part of my shop). I stepped out in the main area where my tractor & BH76 backhoe was at and I just took a looking at it, which is on a rolling storage dolly, and spied a yellow scrapped project cylinder next to it on a shelf. I looked at the BH thumb, then the cylinder. Pause. Thumb. Cylinder. Thumb, then cylinder.

"Naw" I declared while my brain said "Oh for pete's sake, check it out!"

Lacking confidence, I grabbed the cylinder and positioned it next to the mechanical thumb to see if it was the right length.

It was identical.

I then though that the pins wouldn't be the right size. Took the top pin out to try it on the cylinder holes.

It matched.

"Too good to be true, the thumb would bang against the cylinder" I thought. So I took the pins out, yanked that tubular thingamabob and placed the cylinder in the same spot.

It fits.

The hydraulic gods have shined upon me! I shouted with excitement while my poor lab looked at me as if I lost my marbles and waited by the door, wanting to go back in the house.

Of course, I'm momentarily cursed by the time constraints of my busy work schedule (blessed nevertheless) but I'm definitely am going to excited to jump on this very soon!

Thought I'd share it with you all before I hit the sack. Hopefully I'll sleep.

Woot!
 
   / Custom hydraulic backhoe thumb #196  
Aquamoose,

What ho!! What are the chances of something like this coming together at one point in the time-space continuum? This is surely a powerful omen . . . stronger and more emphatic even than the burning bush was to Moses. Good grief man, get ON it!!
 
   / Custom hydraulic backhoe thumb #197  
You don't need sleep, you need a hydraulic thumb.
 
   / Custom hydraulic backhoe thumb #198  
Yeah, I know. I just got done for the day but I'm bone tired. I'm still stoked though!

I'm sitting here re-reading the past postings and I was focused on the Hydraforce valves and I'm sort-of confused as to how they work. I thought they simply worked as an on-off valve but I'm reading the specs that they also act as check valves so now my brain is a little mushy. bumperm, think you could help this fella out here? I'd love to get that same valve you have but with Weatherpak connectors. Once I can find the correct valve, I believe I can slap everything together as fast as I can shave a cat.

And yes BAP, I need a hydraulic thumb, with a ripper!
 
   / Custom hydraulic backhoe thumb #199  
Scratch the connector preference part. I'm not going to be picky.
 
   / Custom hydraulic backhoe thumb #200  
well I have finally started acquiring parts for a build on my CLB40, While looking for equipment for another project, I found a Gentec Hydraulic thumb at auction, lucked out, it was a steal!
now for the valve, after checking specs 10.65, I think I might be better with the Hydraforce SV10 VS SV8, any opinions?
Next questions has anyone done anything about pressure relief valves? I have to get time to read the entire post but I didn't remember seeing anything there.
All info is appreciated!
 

Tractor & Equipment Auctions

Ag Engineering Dammer Diker (A47369)
Ag Engineering...
2022 Ford Maverick (A46684)
2022 Ford Maverick...
2015 FREIGHTLINER CASCADIA TANDEM AXLE SLEEPER (A45676)
2015 FREIGHTLINER...
Allis Chalmers 6080 4WD Tractor (A47809)
Allis Chalmers...
JMR Stump Bucket (A47809)
JMR Stump Bucket...
2021 FORD RANGER (A47001)
2021 FORD RANGER...
 
Top