Kubota B670 backhoe Nuts

KubotaBoy56

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Kubota B7100 with B219 loader and B670 Backhoe
Jan 16, 2022
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Washington State
Hey guys so about 4-5 months ago I was digging a stump with my B7100 and I noticed that one of the pins on the backhoe was knocked out of place and I looked and the one of the nuts holding the pin has broke so currently we have 2-3 nuts broke and we are using nails,anyone know where I can get pins?
 

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PoTreeBoy

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L35 Ford 3930
Mar 24, 2020
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WestTn/NoMs
Hey guys so about 4-5 months ago I was digging a stump with my B7100 and I noticed that one of the pins on the backhoe was knocked out of place and I looked and the one of the nuts holding the pin has broke so currently we have 2-3 nuts broke and we are using nails,anyone know where I can get pins?
I wouldn't use hitch pins there. Too much opportunity to get snatched out. Just use common machine bolts with nylok nuts or double nut them.

Edit: LilFoot has the real answer below. I pulled up the on-line parts list but it was real fuzzy. Sorry
 
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Lil Foot

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1979 B7100DT Gear, Nissan Hanix N150-2 Excavator
May 19, 2011
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Peoria, AZ
Those pins are large cotter pins, held in by 5/16"-18 bolts & nuts.
Bolts & nuts available just about anywhere, the large cotter pins available at any large hardware outlet.
I forget the exact size of the pins, and my tractor is 150mi from here.
IMG_20140523_130114.jpg
IMG_20140523_130121.jpg
 
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jajiu

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L3560 HSTC, Grader, Backhoe, Snow Plow, Pallet Forks
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Try Tractor Supply, you can get nuts, bolts, cotter pins, hitch pins etc.
 

07wingnut

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Hey guys so about 4-5 months ago I was digging a stump with my B7100 and I noticed that one of the pins on the backhoe was knocked out of place and I looked and the one of the nuts holding the pin has broke so currently we have 2-3 nuts broke and we are using nails,anyone know where I can get pins?
Lil Foot hit the nail on the head, I think. However, you might want to give some thought why they are breaking. It could be that there is not sufficient lubrication of the pin, and when in use, it tries to twist in the boss, at the location of the cotter pin.
 

Lil Foot

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1979 B7100DT Gear, Nissan Hanix N150-2 Excavator
May 19, 2011
7,357
2,328
113
Peoria, AZ
However, you might want to give some thought why they are breaking. It could be that there is not sufficient lubrication of the pin, and when in use, it tries to twist in the boss, at the location of the cotter pin.
Correct.
I had one pin (end of the stick if I remember) that had twisted the cotter pins, because it had nearly seized in the hole in the stick, from rust & lack of lube. It was a bitch to remove, and I just made a new pin, rather than put it back in.
 

Joisey

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May 31, 2015
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Wild, Wonderful West Virginia
If the pins are designed to be able to rotate during use, a roll pin an inch longer than the diameter of the pin it is retaining is easy to install, easy to remove, but will never fall out.