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  1. C

    580K Hissing Noise

    To close this issue of hydraulic hissing and a drag on the engine, I found the problem. My FEL has a 3 spool valve. The 3rd spool valve is for a clam bucket which is not installed and the lines are capped off. Somehow, the clam spool valve linkage was partially engaged and seized up, causing...
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    580K Hissing Noise

    What were the symptoms that prompted the swing valve rebuild? I didn’t rebuild that yet. The bh control valves were quite easy. I wouldn’t take the bh control valve assembly out of the machine again either. Just change everything in the tractor…
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    580K Hissing Noise

    It does swing equally both ways. Im going to be looking at the machine this week. I’ll take a stethascope and laser thermometer and try to pinpoint the location of the noise more precisely. Stay tuned.
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    580K Hissing Noise

    Anti climatic update: I cleaned and changed all the o-rings in the bh control valve and re adjusted the linkage to the swing sequence valve as per the book instructions. In addition to the hissing in the BH control valve area, there is also a noticeable load on the motor when the machine is...
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    Stabilizer ram has knicks (580K)

    So, I ended up grinding the knicks clean, wiping with alcohol to degrease, and applying epoxy. I sanded them down smooth and have been using it for about 30 hours. The knicked ram is a stabilizer so it doesn't get nearly as much travel as a Boom, Stick or Bucket cylinder. So far so good.
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    580K Hissing Noise

    Well, I'm finally getting back to the machine. Thanks for the replies. I appreciate them. Since I last posted there have been some new developments. Now the BH controls don't respond with much power and all the BH cylinders move much slower than before. I used the machine to last fall for about...
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    Randspeed muffler for 580K

    To close the loop on this, I welded up the old muffler and it lasted another 6 months. I then tried to buy a muffler from Gulf Power equipment which was advertised at $135 + shipping. They did not have anything in stock and I checked several times over a few months. I also checked a place in...
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    580K Hissing Noise

    Mitch, the machine seems to perform fine. It just makes a constant hissing noise when running.
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    580K Hissing Noise

    My 1987 580K is working quite well. (Pre JJ serial No.) It makes good power and all of the functions seem smooth and strong. However I started getting a hissing sound coming out of the rear of the machine, I believe at the backhoe control valve area. The hissing gets louder as the system warms...
  10. C

    Case 580k dipper cylinder piston cap screw size

    $75 is very reasonable.
  11. C

    Stabilizer ram has knicks (580K)

    While inspecting the old leaky seals on my stabilizer cylinder, I noticed there are 3 or 4 knicks on the ram. The Knicks are about the size of a house fly. I suppose I have 3 options for dealing with the ram while changing seals: a) have shop change the ram shaft, b) smooth the high spots only...
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    Randspeed muffler for 580K

    Anyone have experience with Randspeed products? I'm looking for muffler for the hoe. Old one rusted off at the base. Local NJ Case dealers want about $200 for the A184237 (non turbo). I forgot to ask if that is Donaldson or other brand name. Didn't find any alternatives out there except for...
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    Case 580k dipper cylinder piston cap screw size

    Update. I have put 70 hours on the machine since changing the dipper cylinder seals. No issues with it yet. I used bulldog seals. ( The bulldog boxes say made in USA. ) This winter I'll change out most of the other seals with the same brand of kit. Two are leaking and they all are very old. Clank
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    Case 580k dipper cylinder piston cap screw size

    I know it's been a while but I wanted to follow up on my cylinder project. I got it apart. The gland removal required oxy fuel torch heat around the cylinder to get it removed. We made a jig out of 1" steel to hold the eye of the cylinder. The jig was bolted to an old lathe bed that weighed...
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    Case 580k dipper cylinder piston cap screw size

    After further review, it appears to be 2.25" not 2.375". I had been looking at the "heavy bolt" chart. Fastenal's chart shows grade 8 cap screws such as these requiring a 2.25" socket based on a 1.5" bolt size. Thusly my stabilizer cylinder cap screw would require a 1.5" socket based on a 1" cap...
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    Case 580k dipper cylinder piston cap screw size

    Engineers edge.com shows a nominal socket size of 2 3/8" based 1 1/2" thread size. Thanks again.
  17. C

    Case 580k dipper cylinder piston cap screw size

    Thanks Tinkerer! I had not seen this. I'll look to see what 1 1/2-12 translates to for socket size.
  18. C

    Case 580k dipper cylinder piston cap screw size

    The dipper cylinder started leaking from the gland when I was pushing on a tree. I want to get tools together to take to the machine which is at a remote location and am trying to find the size of the piston cap screw head so I can get the right size 1" drive sockets. The machine is an '87 and...
  19. C

    case 580k brakes - oil sender

    Buddyo , I have an '87 580k and may have a partial answer to your last question. I found an operators manual online for a 580L and it noted that the oil temp gauge is for the torque converter. My gauge doesn't seem to move much but I do not do much heavy loader work. The manual states that if it...
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    Case 580k rear wiper blade length

    The Coleman catalog also shows R52408 as the wiper arm assy ....
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