BX25D backhoe ripper question

   / BX25D backhoe ripper question #51  
The Kubota B21 bucket pins are approx .976 in diameter and might be long enough for your application.

I am going to try the box blade ripper tooth solution next week. It looks good to me and the B21 bucket is not likely to bend.
 
   / BX25D backhoe ripper question #52  
Pat, are the pins 6" long do you think?

I took another look at a picture of my bucket and it does have a reinforced section at the top, but the metal on the sides is like 1/8" at best.
 
   / BX25D backhoe ripper question #53  
His info says BX24, so I assumed that was what was pictured. Going to have to take a look at my BH bucket and see how it compares.

I took a look at my BH bucket, and it looks just like that pictured in Shutesbury's post. Has the bucket been "de-beefed up" some with the BX25?
 
   / BX25D backhoe ripper question #54  
Hmmm.. a nice thing about that alternative is being able to switch back and forth between ripping and digging without having to stop and change out ripper and bucket. That's a pretty cool idea!

That's just a standard box blade ripper tooth you bolted on?

Yea you could change from digging to ripping pretty easy. I have a reluctance to start poking holes in my machine.....I wonder if you could take out the center "tooth" on the bucket and mount something like that in there.....wonder if that would work.
 
   / BX25D backhoe ripper question #57  
I received the two bucket pins from DR yesterday and just like the 1" bolts I tried they were a hair too large to go through the Kubota holes.

So no out of the box solution....

I may take them to someone with a metal lathe and see if I can get them turned down a 64th". The pins were a very good price from DR as pins from say the Case dealer started at $60.00 each. These pins are not the same heat treated metal as the Case pins but should last a good while for the work I have planned.

I ordered this ripper last week, & thanks to ryan08's timely information, I was able to add the pins to my order after a credit card glitch delayed my shipment.

It arrived today, & I think I was able to figure this issue out. I too was unable to get the DR pins to pass thru the Kubota pieces, so I compared the diameter of the Kubota bucket pin to the diameter of the DR pin. Turns out the DR pin is just a couple thousandths over 1", but the Kubota pin measured about .978.
Since .984 = 25mm, I think the obvious answer is that the Kubota pieces are metric, & the DR pins (& mounting holes) are SAE.

Close enough for me though, I chucked the pins up in my lathe, & whittled about .010 off to get the diameter to about .980". I left the first 1" untouched to keep the pin tight in one side of the ripper. Not sure if I will try to come up with something to bush the other hole to the new dimension, or add some .010 shim stock when mounting it. Will probably just use it without anything unless I plan on using it for a long project. Or since the pin is bolted to the ripper & rotates in the Kubota pieces, it might make sense to just deform the holes in the ripper slightly on that side.

Also worth noting is that the machine that this was designed for has about the same breakout force as does the backhoe on my BX24, so I don't think it is underbuilt for this application. Seems pretty sturdy.
 
   / BX25D backhoe ripper question #58  
I took a look at my BH bucket, and it looks just like that pictured in Shutesbury's post. Has the bucket been "de-beefed up" some with the BX25?

Would try tis idea, but was thinking about bolting it to the doubler on the edge which would have it 90 degrees out from where it is now.
 
   / BX25D backhoe ripper question #59  
Would try tis idea, but was thinking about bolting it to the doubler on the edge which would have it 90 degrees out from where it is now.

I was looking at the angle a bit too, and am guessing that his angle was to maintain the "bucketing" action while still allowing for some ripping.

That is, if you go to start digging with the bucket and the ripper stuck out at the angle you describe, it seems the ripper would be in the way and prevent a full curl of the bucket. The ripper would contact and dig into the ground out beyond the bucket.
 
   / BX25D backhoe ripper question
  • Thread Starter
#60  
Just thinking out loud.....
Replace the center tooth of the bucket with a longer tooth from something else so it would function as the "ripper" when doing stumps and could switch it back to the normal tooth for digging?????
 

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