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Case 580 SK quick coupler

Discussion in 'Tractor/Loader/Backhoes' started by mbavers, Nov 24, 2022.

  1. mbavers

    mbavers Well-Known Member

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    I'm thinking of a quick coupler for my Case 580 SK backhoe. I've never used one. I've seen the coupler for sale on-line, but no mention of other parts needed. If anyone has ever made the conversion I would appreciate advice: difficulty of installation, all work and parts necessary to completely install (coupler, locking device, hydraulic or mechanical lock, etc.).
     
  2. mbavers

    mbavers Well-Known Member

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    I forgot to mention I have an extend-a-hoe; don't know if that would make a difference.
     
  3. mitch504

    mitch504 Senior Member

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    If you are talking about the hoe end, it came from the factory with a manual, one pin coupler. With a little practice you can swap a bucket in about a minute with the factory system.
     
  4. mbavers

    mbavers Well-Known Member

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    Yeah, I did have it apart a few years ago to change the hoses on the extending hoe. It seemed like a bit of trouble lining everything up to replace the pin. Have you done it with an extending hoe? When I did the job it was on the bed of my dump truck (tailgate removed); maybe easier on the ground.
     
  5. mitch504

    mitch504 Senior Member

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    Yep, mine is an extendahoe, do you still have the coupler that has the hook that catches the back pin?
     
  6. mbavers

    mbavers Well-Known Member

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    I don't remember what kind of set up I have there. I think it was about 3 or 4 years ago I had it apart. I just remember taking some time to line everything up to drive the pin that attaches the bucket back in. Don't remember any hook. I'll take a look soon as I can--need to clear away some snow first.
     
  7. mbavers

    mbavers Well-Known Member

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    Is this the set-up you are referring to? I think it's original equipment. 580a.JPG 580b.JPG 580c.JPG 580c.JPG
     
  8. mitch504

    mitch504 Senior Member

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    Yep, that's the factory setup. Works great once you get used to it. The real trick is getting the "angle of the dangle" just right. Start with it about where you have it and drive your front pin out. notice how your bucket hangs on the back pin in the hook, you want to know the angle that has your front pin holes almost perfectly lined up. Then reach out and put that bucket down on the ground with the open side down. Your other bucket should already be resting this way, and each bucket should have it's own back pin. pick the other bucket up and hang it so the front pin holes are almost lined up, and no part of the bucket is touching the ground. put the toe of one foot on the bucket teeth and line the pin holes up. you should be able to rock the bucket with your foot as it hangs balanced and push the front pin in and out by hand if things are well maintained.

    Good luck,
    mitch
     
    63 caveman likes this.
  9. mbavers

    mbavers Well-Known Member

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    SEE BELOW (I answered wrong post)
    Thanks for your help. Ironically I just ran across you giving someone the same advice years ago-I believe it was on this forum! I stumbled upon it on the internet.
     
    aighead likes this.
  10. 63 caveman

    63 caveman Senior Member

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    I do remember seeing a quick coupler on one years ago. I think it was an after market set up. Locked to be more of a pain in the a$$ than what it's worth. As long as your pin is greased and not messed up you can change buckets very quickly. Not to mention if your trenching with a back hoe your not in a big rush anyhow.
     
  11. Willie B

    Willie B Senior Member

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    If you replace the pin with something you can release easier than a snap ring.

    Mine had worn out snap ring groove, I numerous times lost the snap ring. I bored the pin & put a bolt in it to free that end of the pin.
    My favorite drift was a piece of schedule 80 PVC electrical conduit.
    Snap ring pliers are frustrating!
     
    HarleyHappy likes this.
  12. Willie B

    Willie B Senior Member

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    The pivot at end of the dipper stick is made up of long stepped bushings. They hold the "coupler" in place. The pin passes through them & the bucket ears. The trick as Mitch said is balancing the bucket on the open hook so there is no weight on the pin. It is easiest with two people, but if no safety police present, you can reach through the open back window to curl the bucket. You can feel when it is hanging freely from the hook.
    After you swear a while at the !@#$^&*()_) snap ring, & the @^*()& snap ring pliers that keep slipping & get it out, the pin will slip easily.
    Lay one bucket on the ground upside down, pins toward you, pick up the other.

    If you don't have extra hydraulic valve & plumbing at the dipper, it's going to be a big deal to to add the hydraulics & it adds significant weight to an already poorly balanced tractor.

    Mine with Ehoe & a hydraulic thumb was best with a very large weight in the front bucket.
     
  13. mbavers

    mbavers Well-Known Member

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    Amen on the "poorly balanced"; I've got an Amulet mechanical thumb-probably heavier than your hydraulic thumb.
     
  14. aighead

    aighead Senior Member

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    I'm interested in this for my New Holland LB75B as well. I assume similarly "easy" hoe bucket change out, but I've never done it.
     
  15. Willie B

    Willie B Senior Member

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    I don't know. Friends have one, I'll ask.
    They do have a quick coupler for the front bucket. It sticks out an extra foot & often causes problems. They switch often to a round bale grapple.
     
    aighead likes this.
  16. aighead

    aighead Senior Member

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    That'd be great!

    I watched a short video for a loader bucket quick attach and while it'd be handy the only thing I think I'd switch out for would be forks and I'm hoping my new camera placement idea solves any issues I have with the over the bucket forks there, I haven't tried it yet. I don't need to spend more money on more forks if I'm just replacing ones that work pretty well already. (though my neighbor said something about paying me with a couple forks, I need to re-approach that subject)