Bucket pin fitting issue

[MachAF]

So I have a 24” bucket and pin fits fine. I just got a 16” bucket and can’t get the pin thru both holes only one. For the life of me can’t get things to line up right. As you can see by the photo it’s only off my a few mm. Any advice on that to do? I could get a smaller pin or drill out the bucket ear holes another few mm.

The fix was to get a magnetic drill press and proper size bit to enlarge the hole. Pin fits now. More info: Its a Sany excavator with Kubota 'style' quick attach. Style is the key word, as the specs are a tad different than Kubota's it seems. Anyways problem is solved. Hopefully this post will save someone else some hassle in the future.

 

[seville009]

To put the pins in my loader pin holes when it wasn't lining up nicely, I'd just use a 10 lb sledge hammer to pound it in. Always worked fine.

 

[MachAF]

To put the pins in my loader pin holes when it wasn't lining up nicely, I'd just use a 10 lb sledge hammer to pound it in. Always worked fine.

I tried that. That just damaged the end of the pin...A slightly small diameter pin would be the easy fix. Gonna try a bridge reamer on a impact wrench to make the hole larger.

 

[mrmikey]

Gonna try a bridge reamer on a impact wrench to make the hole larger.

Not a good thing to do to a reamer, ur asking for flying metal bits.
I'd go with the 10lb fit that Seville mentioned, chamfer the end of the pin a bit.........Mike

 

[laurencen]

looks like it needs to rotate to align holes, there must be a obstruction allowing the holes to align, this a new bucket?

 

[seville009]

Can also use a pry bar to maybe line up the hole a little better.

my pins have a slightly tapered end, which helps. If you happen to have another tapered pin/bar that's long enough to go through that, try using that pin just to get it in line.

I've also moved the tractor ever so slightly to get the holes to line up.

 

[laurencen]

rotating the bucket is needed to align the holes, I can see using a hammer if its just to get the last bit but no way will a hammer pull a hole that far in my opinion, do you have a tapered pry bar you can wiggle in to try and align it

 

[Jrasband]

I would take a burr grinder if you can't get it and open it up a little. Or put a slightly smaller pin in there.

 

[laurencen]

this bucket if correct for the machine should not need modifying something is preventing it aligning, I would look and see where it is hitting something

 

[kthompson]

Have you tried running the pin through the bucket only to see if those bushings line up? You may find it lines up better coming from one side over the other side. I have a bucket that way.

 

[Thomas]

Try using jack of some kind to match the hole than shine the ping and grease it.

 

[4570Man]

I think you need to take that bucket back and get another one. It’s never going to fit right.

 

[5030]

I just repaired a brand new Kubota backhoe for my dealer that had the exact same issue as you have. When the bushing was jigged up for welding, the welder didn't align the bushing properly in the jig so there was no way the pin was going through both (and this one was out by just about that much. The bushing was welded off the trough hole about that much. I had a couple choices to fix it. I could have gouged off the welds on the bushing with my plasma cutter or ground them off with an abrasive wheel and then repositioned the bushing correctly (which would have been quite involved) This is the way I did it...

Chucked the pin in one of my lathes and turned the end of the pin down to where it would fit. I turned the pin back just far enough so it would go in the bushing and still be bottomed against it with the fixing bolt installed in the pin. I also drilled the pin and cross drilled it for grease and added a zerk fitting to the end. Customer will never know what I did and everyone was happy. One of your pin bushings was welded not in alignment. What happens when a production welder don't double check the work prior to welding.

Do those kind of fixes for my dealer all the time. Replacement parts are hard to get today so no point in letting a minor issue like that hold up the sale of a new tractor.

 

[5030]

I think you need to take that bucket back and get another one. It’s never going to fit right.

Yes, it will, read my post. I do that stuff all the time. Matter of fact he just dropped off another boo-boo for me to fix. This time it's a Case Magnum ag tractor weldment.

 

[laurencen]

what do the owners do if they switch back to another bucket that is welded right? replace the bucket at the dealer in this case

 

[PILOON]

I seasonally remove and re install my bucket.
To make that task easier I machined a 'bullet' which is a pin of the correct diameter but with one end very tapered for easy inserting.
Once inserted I then drive out the 'bullet' with the actual pin.

In your case of misalignment a long reamer would be the correct tool.
Not ideal, but practicable, would be a careful filing with a round file followed by some polishing.

 

[Fixastuff]

I just repaired a brand new Kubota backhoe for my dealer that had the exact same issue as you have.

Chucked the pin in one of my lathes and turned the end of the pin down to where it would fit. I turned the pin back just far enough so it would go in the bushing and still be bottomed against it with the fixing bolt installed in the pin. I also drilled the pin and cross drilled it for grease and added a zerk fitting to the end. Customer will never know what I did and everyone was happy.

Until they swap a different bucket on. Glad you don't work on my stuff. There's a right way to fix stuff then a ton of others ways that aren't.

 

[laurencen]

if I purchased a piece of equipment and found this type of fix I sure would be pissed at the dealer,

 

[etpm]

So I have a 24” bucket and pin fits fine. I just got a 16” bucket and can’t get the pin thru both holes only one. For the life of me can’t get things to line up right. As you can see by the photo it’s only off my a few mm. Any advice on that to do? I could get a smaller pin or drill out the bucket ear holes another few mm.

If it was me and the bucket was just purchased from a business I would take it back. There is no reason for you to need to modify the bucket. Opening up the hole will result in only a partial contact on the pin and the hole, which will lead to accelerated wear on both. If there is no way to take the bucket back for a replacement, repair, or refund then I would remove the original bushing and weld a new one in at the proper location. If you do decide to use a bridge reamer don't use an impact driver to spin the reamer because that will almost surely damage or outright break or ruin the reamer. Reamers do not like shock loads. Shock loads lead to broken teeth and broken reamers.
Eric

 

[5030]

Until they swap a different bucket on. Glad you don't work on my stuff. There's a right way to fix stuff then a ton of others ways that aren't.

Not my concern and I seriously doubt the owner will switch buckets anyway. So tell me, how would you have done it in an expeditious manner at minimal cost? I'm real curious. I don't believe you know but please tell me if you do.

Most people that buy add on backhoe's ever exchange buckets. And if he did, all he had to do was purchase another pin.