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  1. T

    7.50x16 tires on front!

    Thanks for the replies, I think I will stick with 11x16 if I can find some! Take care.....
  2. T

    7.50x16 tires on front!

    Hi, I was just wondering if a 10 ply 7.50x16 trailer tire that I currently have on a gooseneck trailer (currently in a state of disrepair) would work as a replacement for the front tires on my Case 580b? The tires that are on the backhoe are so old that I can barely make out the size; but I...
  3. T

    Swivel joint on 580b

    Thanks!
  4. T

    Swivel joint on 580b

    HI, I need to replace a couple of o-rings on the two swivel joints on my 580b. I am new to hydraulics and was wondering if pressure needs to be released before the hoses are disconnected? If so, how would I go about doing this? Thanks!
  5. T

    relief valve, breather?

    Thanks so much!
  6. T

    relief valve, breather?

    Hi, so there are two fittings pictured with the smaller brass fitting screwed into the larger one. I took the smaller of the two off and cleaned it and it had some sort of what I can only describe as a thin semi-coned shaped piece of metal that went in at the top! The lower fitting is where the...
  7. T

    relief valve, breather?

    Hydraulic fluid leaks from where this fitting screws in and I am afraid to tighten it too much! Case 580b I think 1973
  8. T

    relief valve, breather?

  9. T

    relief valve, breather?

    Can anyone identify this part? Thanks!
  10. T

    relief valve, breather?

    Didn't work...Please disregard.
  11. T

    relief valve, breather?

    Hi, can anyone identify this?
  12. T

    Fluid change 1972 case 580b

    Hi, I too am new to the backhoe world and have just recently purchased a 1975 580b hydrostatic. The reason I am posting this reply is because on my unit, there are a total of 4 drain plugs underneath! 2 are for the tranny, 1 each for the rear end and oil. The transmission filter is located in...
  13. T

    Case 580b hydraulic filter change.

    Hi, yes I saw that. Thanks!
  14. T

    Case 580b hydraulic filter change.

    Thanks! Although the head on mine is on the top, the principle is the same and I thank you for the diagram. Take care...
  15. T

    Case 580b hydraulic filter change.

    Hi all, before completing the repacking of the loader cylinders, I replaced the hydraulic filter. In taking the old filter out, I noticed the "hole" in the filter was facing down, so I put the new filter in the same way! I just dropped the new filter in, poured in some hydraulic fluid and...
  16. T

    Loader lift cylinder kit/Case 580b

    Hi, I will discard the thin white seal. Thanks to both of you for the photos and information! Take care....
  17. T

    Loader lift cylinder kit/Case 580b

    Hi, received my parts for the cylinder re-packing and am a little confused. The piston rebuild is pretty straightforward, however packing the gland is confusing me due to the old seals in the gland being unrecognizable and no instructions coming with my new parts. By the way, I am working on a...
  18. T

    Case 580b transmission filter o ring

    Thanks so much!
  19. T

    Case 580b transmission filter o ring

    Hi, yes it is the shuttle filter. I have not taken the top off of the housing until I knew whether or not I needed an o ring. Thanks!
  20. T

    Case 580b transmission filter o ring

    HI everyone, I am just about to change the transmission fluid and filter in my 580b. I received the new filter but there was no o ring! Does the filter housing have or require an o ring? If so, would anyone know the part number? Thanks!
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