Backhoe Pivot Pin Issues

   / Backhoe Pivot Pin Issues #1  

rjpotts

Bronze Member
Joined
Jan 28, 2021
Messages
96
Tractor
Kioti CK3510SEHC
The pivot pin circled in red keeps working its way out. It does so with so much force that it shears the retaining bolt (or snap clip). I don't think it's a greasing issue because I've greased it.

Thoughts?
20220603_143056.jpg
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20220603_143056.jpg
20220603_143034.jpg
 
   / Backhoe Pivot Pin Issues #2  
It should be a bolt through the outer ring and through the pin. Probably a grade 5 at least, maybe a grade 8. Was the pin replaced? It should be flush or just slightly past the "ring" that has the empty hole in it. There should be one on each side.

The snap type "linch pins" are very soft and will break easily.

Here is a pic of my BH pins.... if you zoom in, you can see the two bolts holding the pins in.
 

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   / Backhoe Pivot Pin Issues #3  
This area circled in red makes it look like a cotter pin. Those are very soft and I would not expect it to hold. Like was mentioned, you need a bolt. Preferably thru the original hole. If you don't have the equipment to accurately drill a hole in a rod, take it to a machine shop to do. I don't think it would be very expensive.

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   / Backhoe Pivot Pin Issues #4  
Yup a bolt should do the trick. If its a little
sloppy add a washer but use a bolt for sure!
Tractor supply has all kinds of pins that you
could use if you don't want to use a bolt and
if you are going to keep the clip in in the picture
use a washer.

willy
 
   / Backhoe Pivot Pin Issues #5  
The pivot pin circled in red keeps working its way out. It does so with so much force that it shears the retaining bolt (or snap clip). I don't think it's a greasing issue because I've greased it.

Thoughts?View attachment 748795View attachment 748796View attachment 748795View attachment 748796

If the bolt is being sheared off then my guess would be that the pin is bent or there is something out of alignment. Does the pin move back and forth with no load and slight tapping with a hammer? Perhaps try a new pin and see what happens.
 
   / Backhoe Pivot Pin Issues #6  
I looked at my BH today, I said there were bolts on both sides.... wrong. One side has a flange on the pin, with the center grease zerk. Only one side has the bolts.
 
   / Backhoe Pivot Pin Issues #7  
Seeing picture makes wonder about why the securing bolt/pin is not through collar/pin combo.... Logic tells me the way pin is supposedly locked in place is wrong, by what I see in picture... What does other side of bucket link/pin look like?


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