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  1. J

    Case 580D Boom Cylinder Rebuild or Replace?

    Forgot to list the seal kit and cross reference numbers since there was some confusion with the seller about which kit was correct. The same seals are listed with different numbers for different cylinders. https://www.brokentractor.com/p/case-backhoe-boom-cylinder-seal-kit-1543265c1-1543265c1/...
  2. J

    Case 580D Boom Cylinder Rebuild or Replace?

    After much searching I went with the aftermarket cylinder. Used ones with no guarantee they were rebuildable were going for over $600, used and rebuilt with 90 day warranty were over $1k. The aftermarket was $825 delivered, 1 year warranty, and it takes the standard Case seal and packing set...
  3. J

    Case 580D Boom Cylinder Rebuild or Replace?

    I was curious how straight I could get the rod so I put it on my buddy's press this morning and we got it to within 5 thousands on the dial indicator. It had over a 1/4 inch bend overall to start.
  4. J

    Case 580D Boom Cylinder Rebuild or Replace?

    I've thought about it. A machinist friend has a large hydraulic press and has experience straightening rods so I could probably get that straight, then knock down the worst of the scoring on the piston and cylinder bore and have a workable cylinder for many years considering how long this one...
  5. J

    Case 580D Boom Cylinder Rebuild or Replace?

    Thanks, I'm checking with local repair places first to see if there is something nearby that I can inspect before buying.
  6. J

    Case 580D Boom Cylinder Rebuild or Replace?

    I'm fairly sure it was the bent rod which was forcing the piston to one side of the bore on each stroke. Once the packing wore away it was metal on metal.
  7. J

    Case 580D Boom Cylinder Rebuild or Replace?

    Good point, I assumed it would use the same Case dimensions but I suppose it could be metric.
  8. J

    Case 580D Boom Cylinder Rebuild or Replace?

    Yeah that's why I was wondering if these aftermarket units were any good.
  9. J

    Case 580D Boom Cylinder Rebuild or Replace?

    Not sure how the rod bent. It's an old machine in pretty good shape overall and I've had it for 20 years or so but only occasional use. Pins don't seem sloppy enough to allow a bend in normal use. Maybe it was swung sideways against a tree or something when fully extended?
  10. J

    Case 580D Boom Cylinder Rebuild or Replace?

    Took the boom cylinder apart to repack it and found the rod was bent and the piston was scored, I'm assuming the cylinder wall is scored the same amount. I'm thinking with the amount of scoring on the piston that honing the cylinder enough to smooth it out might cause fluid bypass. I'm...
  11. J

    Why is oil coming out of the steering wheel on my Case 580D?

    As far as I can tell the steering pump is part of the main hydraulic pump and pulls oil from the same tank. At least the ones that have a loader. Without a loader there is a separate steering pump. As far as the brakes, from what I've read Case also specifies hydraulic fluid, not brake fluid...
  12. J

    Why is oil coming out of the steering wheel on my Case 580D?

    That was kind of a joke, (not a good one obviously), meaning the oil isn't supposed to be in the steering wheel, but in the steering box. But it brings up a question, I thought the fluid was the same type as the rest of the hydraulics?
  13. J

    Why is oil coming out of the steering wheel on my Case 580D?

    Well it's not supposed to be steering wheel oil, it's supposed to stay in the pump.
  14. J

    Why is oil coming out of the steering wheel on my Case 580D?

    The seal kit with the proper seals showed up yesterday, I got it all back together and am finally running leak free :drinkup Well, at least no leaks in the steering box :o
  15. J

    Why is oil coming out of the steering wheel on my Case 580D?

    Plenty of choice words for whatever genius decided a snap ring with no holes was a good idea for anything :beatsme :Pointhead :Banghead It wasn't broken, just never had any means of grabbing it. After poking at it with picks for half an hour or so I got out the drill, drilled a small hole in...
  16. J

    Why is oil coming out of the steering wheel on my Case 580D?

    Got a close up pic of the snap ring, looks as if the "eyes" were broken off at some point in time.
  17. J

    Why is oil coming out of the steering wheel on my Case 580D?

    So I guess the parts diagram is mislabeled since #15 seal, which I have goes on top of the snap ring, spacer, and #17, which must be the real pressure seal, even though it's labeled "Dust Seal". I assume replacing just #15 dust seal won't help me if the real pressure seal is #17. Also, my snap...
  18. J

    Why is oil coming out of the steering wheel on my Case 580D?

    So I may have screwed up. On the Coleman page I clicked on #15 Seal D70586 Replaced: A47038, but I didn't click on #16,17,18 because I thought they all came as a kit along with 15. Packaged arrived today and all I have is one seal, which I assume is #15, but has a number D70586. Can I get...
  19. J

    Why is oil coming out of the steering wheel on my Case 580D?

    Awesome, thanks for the step by step instructions :notworthy When you say remove the pin for the shaft, is that #5 roll pin in the diagram?
  20. J

    Why is oil coming out of the steering wheel on my Case 580D?

    Yeah no center cap on the wheel, so I guess I need a new cap, and a new seal. Can you tell which parts from this diagram? http://www.colemanequip.com/Case-580D-Loader-Backhoes-Parts/Steering-4L/STEERING-COLUMN-AND-CONTROL-VALVE-0YYT/ Maybe # 15 seal?
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