Another tooth bar topic

[carpenter383]

With all this talk about tooth bars lately I thought I might as well throw a question out there too.
I have a tooth bar and it's very handy, but I've always wondered why the teeth are upside down compared to the teeth on backhoes, box blades etc.?
TIA

 

[beenthere]

Compared to backhoes, I don't think they are.
Care to expand on that?

 

[Trkrd]

Maybe we need a "Bucket Dentistry" thread?:

 

[carpenter383]

Compared to backhoes, I don't think they are.
Care to expand on that?

Yes sorry, I'm talking about the actual backhoe bucket that you dig with. If you look at the bucket as you pull it toward the operator's seat the teeth are upside down compared to the teeth on a toothbar. The teeth on a backhoe dig with the flat side, same way with the scarfiers on a boxblade. This is opposite of a toothbar for a tractor fel.

 

[carpenter383]

Maybe we need a "Bucket Dentistry" thread?:

Yes, but without the novicane

 

[rambler]

Every toothbar I've seen, the teeth are flat on the bottom, just like a backhoe bucket.

Did yours get bolted on upside down or something?

Could you post a picture?

--->Paul

 

[carpenter383]

Every toothbar I've seen, the teeth are flat on the bottom, just like a backhoe bucket.

Did yours get bolted on upside down or something?

Could you post a picture?

--->Paul

Yes, my teeth are flat on the bottom. What I mean is toothbar teeth dig with the opposite side of the tooth when compared to a boxblade scarfier of backhoe tooth. The boxblade uses the flat side of the tooth to dig (same with a backhoe) and the toothbar uses the other side.
One pic is of my toothbar and the other is of my boxblade tooth

View attachment 154117

View attachment 154118

 

[greg_g]

Backhoes dig, boxblades (scarifiers down) dig, front loaders load, front loaders with teeth scrape. They are neither designed for or intended for anything more radical than scraping maybe 4" below level. So. Teeth one way so backhoes and boxblade (scarifiers down) can dig, teeth the other way so front loaders can scrape.

//greg//

 

[rambler]

I see!

The flat part of the tooth goes to the side that gets the most wear.

That's scraping on the ground with a loader edge.

Or facing the dirt it is diffing with the other 2 implements.

--->Paul

 

[beenthere]

Yes, my teeth are flat on the bottom. What I mean is toothbar teeth dig with the opposite side of the tooth when compared to a boxblade scarfier of backhoe tooth. The boxblade uses the flat side of the tooth to dig (same with a backhoe) and the toothbar uses the other side.
One pic is of my toothbar and the other is of my boxblade tooth

View attachment 154117

View attachment 154118

So, your FEL bucket teeth are the same as backhoe bucket teeth. Glad you have that straightened out in your mind. The teeth dig and curl the loosened dirt into the bucket. The FEL pushes the bucket, the Backhoe pulls the bucket.

Boxblade is a tooth for ripping. But don't think any are "upside down" as in the original question (post of why).

Now you can rest easy.

 

[carpenter383]

So, your FEL bucket teeth are the same as backhoe bucket teeth. Glad you have that straightened out in your mind. The teeth dig and curl the loosened dirt into the bucket. The FEL pushes the bucket, the Backhoe pulls the bucket.

Boxblade is a tooth for ripping. But don't think any are "upside down" as in the original question (post of why).

Now you can rest easy.

I understand that a backhoe pulls the bucket and a fel pushes the bucket, but it doesn't matter how it's being moved as long as it's being filled with material The teeth on a backhoe bucket dig with the flat side up (toward the ground) just like a box blade. They are oppisite of a toothbar in relation to the bucket.

 

[beenthere]

I think you should look at that again.
Or show a pic of the backhoe bucket that has the flat side in the bucket, and not on the outside of the bucket.

 

[pitt_md]

something is amiss. As others have said buckets and tooth bars dig the same. I think we don't under stand what your asking.

 

[carpenter383]

I think you should look at that again.
Or show a pic of the backhoe bucket that has the flat side in the bucket, and not on the outside of the bucket.

Ok here is a pic of a backhoe bucket, as you can see the flat sides of the teeth are up just like a box blade. In the pic of my tooth bar the teeth are flat side down. On the backhoe bucket dirt is pulled up the flat side of the teeth and into the bucket. On the fel teeth, dirt is pulled up the opposite side

View attachment 154301

View attachment 154302

 

[beenthere]

Those backhoe bucket teeth look to be positioned wrong. And as you said, upside down.
But some may like them that way. How come? I don't know

 

[tugboat-2]

Id have to run out in the snow to look at mine so instead, I'll take a guess at my theory: The teeth on a loader tooth bar may be set that way to provide a more smooth run.

For instance if you are plowing a light skiff of snow or doing a light grading job with the tooth bar attached,...the teeth are set to line up smoothly with the cutting edge of the bucket in a "level" position.

Also,...I could be wrong again,...but I "think" the "wear-plates" on the teeth have a lot to do with how they are positioned. The plates should be the part that takes the load or slides on the gravel or gets the most "wear", . . . does that make sense?

The teeth on the red hoe picture "look" to be backwards,...but on the other hand the "wear-plates" seem to be correct for digging and "pulling" the bucket.

IF,..they were on "upside-down",... could you still plow snow or grade smoothly, or would the teeth tend to dig in? That's my thought without going out to look,....if I'm all wet on that,...please forgive me,...been out all day and am now comfortably ensconced in my warm "nest" with boots off, enjoying a little tot of Kentucky Bourbon while chatting with you guys and gals a moment prior to going below to the galley to prepare supper.

CHEERS!
. . tug

 

[carpenter383]

Id have to run out in the snow to look at mine so instead, I'll take a guess at my theory: The teeth on a loader tooth bar may be set that way to provide a more smooth run.

For instance if you are plowing a light skiff of snow or doing a light grading job with the tooth bar attached,...the teeth are set to line up smoothly with the cutting edge of the bucket in a "level" position.

Also,...I could be wrong again,...but I "think" the "wear-plates" on the teeth have a lot to do with how they are positioned. The plates should be the part that takes the load or slides on the gravel or gets the most "wear", . . . does that make sense?

The teeth on the red hoe picture "look" to be backwards,...but on the other hand the "wear-plates" seem to be correct for digging and "pulling" the bucket.

IF,..they were on "upside-down",... could you still plow snow or grade smoothly, or would the teeth tend to dig in? That's my thought without going out to look,....if I'm all wet on that,...please forgive me,...been out all day and am now comfortably ensconced in my warm "nest" with boots off, enjoying a little tot of Kentucky Bourbon while chatting with you guys and gals a moment prior to going below to the galley to prepare supper.

CHEERS!

. . tug

I would say you're probably right about the teeth wanting to dig in if they were flipped with the flat side up. Using a fel it would be hard to get a smooth cut because the teeth would tend to pull the bucket too deep.
With box blades, subsoilers, backhoes etc. It's easier to control the digging depth than a fel.

 

[Grut]

Just jumping in on this topic because of curiousity.
Carpeneter383 I have the same teeth postion on my Hoe Bucket. My buddy who runs equipment noticed it the first time he was looking over my machine that the teeth are upside down. He said that as long as it digs ok don't worry but you could torch them off in the future and flip them. They do work fine and I'm one for if it works don't fix it. Question is are they really postioned upside down? I have seen some large units have them positioned opposite of mine and have some some small units positioned the same exact way as mine. Which is correct?

 

[BXpanded]

All 3 buckets have the teeth correctly installed.

On the loader, most of the wear is on the down side as you "shave" off the dirt. Also, the flat side, level with the bucket bottom, allows a cut without diving into the ground. Tilt your bucket 15 degrees and try to make a level cut.

The red BH bucket has the same fabricated teeth as the loader. The intent is that these teeth will "dive" in therefore the flat side is up.

The yellow BH bucket has forged or cast teeth. These are shaped differently than the fabricated teeth and are not comparable in this case.