110 tlb thumb question?
- Thread starter mechatgsk
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AKfish...now I'm gonna be polite and not take your smart answer to heart. Really! I'm gonna try my best!
For your information I did check before and after welding and before using the thumb. IT WAS FLAT! You may think this is normal for 5 or 6 uses but I don't! I also know how the hydraulic pressures of the thumb and bucket work. Thank you! People like you don't know when to say nothing at all.
AKfish
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AKfish...now I'm gonna be polite and not take your smart answer to heart. Really! I'm gonna try my best!
For your information I did check before and after welding and before using the thumb. IT WAS FLAT! You may think this is normal for 5 or 6 uses but I don't! I also know how the hydraulic pressures of the thumb and bucket work. Thank you! People like you don't know when to say nothing at all.
Ok.. ok. I should have been more "politically correct" in my response. My apologies. Feel free to give me a "I coulda had a V8 hand slap to the forehead" the next time I say something without thinking!!
However, I do not believe that you're being realistic with either your concerns or your expectations regarding the thumb install. The metal contact strip is a wear item. It's sole purpose is to protect the dipperstick and deflect the strike energies from the thumb.
It has no effect upon the structural integrity of the dipperstick. So, gap or no gap either before use or sometime down the road is not that significant.
And it will wear... and the contact points on the backside of the thumb will wear. And the gap will become greater over time and use.
It's a backhoe. Not a surgical instrument or a machine to pick cherries with.
Enjoy your tractor! They're a great machine - and I really wish that Deere was still building them.
AKfish
AKfish, I accept your apology. I agree to some extent about your concerns...I'm a mechanic/machinist/metal fabricator by trade...and I'm also a perfectionist with most everything I do. I know the wear (contact plate) plate is not designed to give structural integrity to the dipperstick. My main concern is the indentation of the dipperstick. Just a note..this dipperstick alone cost $3,600.00 dollars. I know this can be done better to prevent this from happening. I will show you how I do it here on this forum. I also know this is a backhoe...but it's way more than that to me. I have dreamed of owning one of these machines. And I finally got to purchase this one in 2011. I have owned several new John Deere tractors prior to this 110 tlb and I can honestly say it's the best all around tractor I have owned. I wanted one tractor to do a variety of jobs. I do all my own work around home and this tractor helps out tremendously. I really enjoy operating it! AKFish, thanks for the compliment on the install. Have a great afternoon!
Mechatgsk
Last edited:
Gale Hawkins
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Do your think JD made a mistake by adding that contact stop that thick? What if you ground that much off of the stops on the thumb itself?
Mechatgsk, not very familiar with the 110 machine, yours looks to be very nice.
You might want to check and see if there is a pressure relief valve for the aux circuit, on my old Bobcat, the factory didn't install them. When one added an attachment that required it (grapple or 4-1 bucket) you had to buy it seperately. When I first used my 4-1 bucket, I could almost stall the machine when closing it from the excess pressure.
Installation was simple, just remove a plug on the spool valve and screw in the pressure relief valve.
Ed
You might want to check and see if there is a pressure relief valve for the aux circuit, on my old Bobcat, the factory didn't install them. When one added an attachment that required it (grapple or 4-1 bucket) you had to buy it seperately. When I first used my 4-1 bucket, I could almost stall the machine when closing it from the excess pressure.
Installation was simple, just remove a plug on the spool valve and screw in the pressure relief valve.
Ed
Ed L,
I was wondering the same when I started following this thread, however, since the plumbing for the backhoe 7th function (thumb in this case) is a 'factory only' install (ie must be ordered when the backhoe is built), I would think the pressure relief valve, if any, is already present. It was when I read AKFish's reply above (post#10) regarding the 2500psi for the 7th function vs 3000psi for the backhoe itself that I believe my assumption was confirmed. I hope I'm not mistaken albeit I am familiar with the old 'assumption' adage!
Frencht
DocDryden
Gold Member
After reading this thread about the thumb, I decided to take a look at mine. I dont need to be concerned about bending the contact stop or the dipperstick. I dont have a stop. (it looks like someone forgot to weld one on ) And now I am concerned I might do some damage without one. What do you guys think? I have only had the 110tlb for about 2 months and have-not worked with the thumb a lot.
murphy1244
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Yours don't look like its hitting at all.
DocDryden
Gold Member
No its not hitting now. But there is some contact marks, it looks as if it has hit sometime in the past