110 tlb thumb question?

murphy1244 · Mar 2, 2013

his is bending the arm.

Gale Hawkins · Mar 2, 2013

I thought just leaving it off may have been the best in the other case. Your setup seems to support the stop is a bad idea on the 110 thumb set up. How many times have you used the thumb? It tagging from time to time would not concern me.

DocDryden · Mar 2, 2013

No, it does not appear to be bending the arm. I have only had the 110 for about 2 months and have used the thumb a couple times.

DocDryden · Mar 2, 2013

in this photo you can see that someone closed the arm with the thumb opened and did some damage

AKfish · Mar 2, 2013

murphy1244 said:
his is bending the arm.

Whoa... really??

I thought that maybe I'd "overreacted" and concluded that the issue was really a matter of misplaced "concern". So, I went back and carefully looked over the OP's initial photos. Nah, I didn't overreact; the problem is really misplaced concern!

You might wanna go back and revisit those pictures as well.

Look at the front plate of the dipper arm. Please note the concave surface and the inside gap between the dipper and the contact/wear plate. During the final welding and construction of the dipper arm, the surface of the arm developed a "normal" concave.

I would bet "dollars to donuts" that virtually every boom arm and dipper arm you'd care to inspect - irregardless of manufacturer - has some distortion. Every sheet of flat steel or plate steel that I've ever looked at has a measure of warpage. Before... before it's ever been welded! A perfectly flat surface or perfectly square dimension is a fantasy.

I'd like to see photos of straight edge measurements taken along the face of the boom arm and dipperstick ALL THE WAY to the thumb - beginning at the bottom of the boom arm.

AKfish

murphy1244 · Mar 2, 2013

AKfish said:
Whoa... really??

I thought that maybe I'd "overreacted" and concluded that the issue was really a matter of misplaced "concern". So, I went back and carefully looked over the OP's initial photos. Nah, I didn't overreact; the problem is really misplaced concern!

You might wanna go back and revisit those pictures as well.

Look at the front plate of the dipper arm. Please note the concave surface and the inside gap between the dipper and the contact/wear plate. During the final welding and construction of the dipper arm, the surface of the arm developed a "normal" concave.

I would bet "dollars to donuts" that virtually every boom arm and dipper arm you'd care to inspect - irregardless of manufacturer - has some distortion. Every sheet of flat steel or plate steel that I've ever looked at has a measure of warpage. Before... before it's ever been welded! A perfectly flat surface or perfectly square dimension is a fantasy.

I'd like to see photos of straight edge measurements taken along the face of the boom arm and dipperstick ALL THE WAY to the thumb - beginning at the bottom of the boom arm.

AKfish

Take it easy fish, I was just doing a comparison to Doc's dipper stick. What do you think of his photo's???

Gale Hawkins · Mar 2, 2013

DocDryden said:
in this photo you can see that someone closed the arm with the thumb opened and did some damage

View attachment 306093 View attachment 306094 View attachment 306095 View attachment 306096

Was this done with an OEM JD thumb like showed in the first post on this thread?

To me it looks more like marks made by the bucket teeth.

DocDryden · Mar 2, 2013

Gale Hawkins said:
Was this done with an OEM JD thumb like showed in the first post on this thread?

To me it looks more like marks made by the bucket teeth.

maybe your right, i just assumed that it was from the thumb

AKfish · Mar 2, 2013

Gale Hawkins said:
Was this done with an OEM JD thumb like showed in the first post on this thread?

To me it looks more like marks made by the bucket teeth.

Ok... here's when I'll have to admit to making a dumb @ss move with my 110 backhoe!

'Cause I've got a dent along the edge of my boom arm - just like that!!!

If you leave the stabilizers in the up position and swing the hoe from side to side.... well, the backhoe is NOT designed to do that! And those darn stabilizer feet will absolutely crimp and roll it over; that 1/2" (might be 5/8") thick plate steel! Aaarrggh!

I only did it on one side, though... that was enough. 'Course, if you were in a full-blown swing motion - it would/is very hard to stop that motion with those legs up - the whole back end of the tractor is swaying! And you could crimp both edges.

AKfish

Gale Hawkins · Mar 2, 2013

DocDryden said:
maybe your right, i just assumed that it was from the thumb

Based on our JD 310 hoe I do not think JD would design anything that would interfere with another part of the hoe. The bucket teeth (longer after market teeth) gets close but still clears. Our weld on manual aftermarket thumb will not interfere in any possible setting from max to closed positions. We tacked it on then tested in each possible position before proceeding with the mounting process.

Now our hoe bucket was made for another model/brand machine and someone cut off the old bucket below the pins and welded on the current bucket and got a very slight bit of angle in the process so the thumb teeth do not always mesh well with the bucket teeth but that is only an issue when closing the bucket to travel.

Gale Hawkins · Mar 2, 2013

AKfish said:
Ok... here's when I'll have to admit to making a dumb @ss move with my 110 backhoe! 'Cause I've got a dent along the edge of my boom arm - just like that!!!

If you leave the stabilizers in the up position and swing the hoe from side to side.... well, the backhoe is NOT designed to do that! And those darn stabilizer feet will absolutely crimp and roll it over; that 1/2" (might be 5/8") thick plate steel! Aaarrggh!

I only did it on one side, though... that was enough. 'Course, if you were in a full-blown swing motion - it would/is very hard to stop that motion with those legs up - the whole back end of the tractor is swaying! And you could crimp both edges.

AKfish

OK I can see that happening.

My DA move was just the opposite. I had the hoe swung to the side and under the stress of working my way out of being stuck I for some unknown reason raised the stabilizer on that same side and hit the hydraulic fitting that goes into a steel line and cracked it where the fitting was attached to the steel line. After having to fix that fine mess I expect I will never be tired enough to forget and do that again.

After that late one evening I was so proud of myself. I was moving the dirt from the same place where I got stuck cleaning out a ditch and messed up the hydraulic fitting with the stabilizer. I was going to have to use the truck lights to make one more load and after telling the kids we were going to make one more trip I just shut off the truck and got out. They wanted to know what was wrong. I told them we were through for the day and they like to have freaked out.

A feeling just came over me that I was pushing too hard being so tired and hungry and that adding in the low lighting condition just made the risk higher than I wanted to accept for an accident to happen. It was the same conditions that messed up the hoe with the stabilizer about a month earlier because I waited for the mud to dry before moving it.

AKfish · Mar 2, 2013

Gale Hawkins said:
OK I can see that happening.

My DA move was just the opposite. I had the hoe swung to the side and under the stress of working my way out of being stuck I for some unknown reason raised the stabilizer on that same side and hit the hydraulic fitting that goes into a steel line and cracked it where the fitting was attached to the steel line. After having to fix that fine mess I expect I will never be tired enough to forget and do that again.

After that late one evening I was so proud of myself. I was moving the dirt from the same place where I got stuck cleaning out a ditch and messed up the hydraulic fitting with the stabilizer. I was going to have to use the truck lights to make one more load and after telling the kids we were going to make one more trip I just shut off the truck and got out. They wanted to know what was wrong. I told them we were through for the day and they like to have freaked out.

A feeling just came over me that I was pushing too hard being so tired and hungry and that adding in the low lighting condition just made the risk higher than I wanted to accept for an accident to happen. It was the same conditions that messed up the hoe with the stabilizer about a month earlier because I waited for the mud to dry before moving it.

It is amazing how the work and sweat (and $$) of having to deal with one's own fubar's will "make you" turn that switch off and trudge back to the house!!! Pushin' that extra foot... or inch is is often better done with a clearer head the next day!

AKfish

AKfish · Mar 2, 2013

Stopped by the shed where the 110 is parked after collecting the chicken eggs and replacing some straw in their egg-boxes. Haven't really moved it much during the past 2 winters. The cab tractor has been getting most of the snow work!

Nonetheless, I looked the boom and dipperstick over to make a mental comparison to mechatgsk's and DocDryden's backhoe's. First off, the plate thickness along the boom arm and dipperstick arm face is only 1/4" - not 1/2" - my bad... memory!

And, my hoe does NOT have the wear plate along the bottom of the dipperstick - like mechatgsk's machine. I have a couple of paint nicks where the back of the thumb has made contact with the dipper but no significant damage.

Of course, the curled over edge on the boom arm from the stabilizer foot is still there...

AKfish

DocDryden · Mar 3, 2013

Well as you can see in photo #1 it was not the Thumb, or the bucket teeth photo # 2.
Just as Akfish said it was the stabilizer foot. Photos # 3, 4, 5, I could not sleep last night thinking about this. My hats off to you Akfish you were right. I never would have thought it was the stabilizer foot. Now I know to be careful when I swing that boom with the stabilizers up. And as far the contact stop plate, I can live without it.. Just a note my previous tractor was a Ferguson TO-20 so this 110 is a BIG step up for me. THANKS to ALL

1

2

3

4

5

murphy1244 · Mar 3, 2013

Holy Mackerel Batman, Them darn stabes! Good job Fish.

treetrimmer01 · Mar 4, 2013

Doc
Just a quick note about your thumb, yes it needs the stop welded on the boom.
Retract your thumb all the way up then with your hand push up on it and watch your cylinder. You will see that it is trying to push the ram in more, and it is already all the way in. The weld on stop is there to protect your cylinder on the ram. Curl your bucket up carefully and it will contact the thumb and push the thumb up some more which will put pressure on the thumb cyl ram.
Ihope this helps
Treetrimmer01