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Recent content by booneyboy

Yesterday's Tractor Forums
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    CASE 580D backhoe with weak hoe

    Yes, I marked them and turned half turn clockwise, checked pressure, turned another half turn, checked pressure etc.. no change at all so I put it back to the original setting. When you mention the secondary relief valves, are you talking about the two valves located on the top and bottom of...
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    CASE 580D backhoe with weak hoe

    Thank you for the feedback guys... I had pulled all the spools for the hoe and replaced the dust seals and o-rings (one on top of spool and one at bottom). spools had some minor scuffing but no grooves etc. I did not pull the relief valves for each spool. I will have to do that on the low...
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    CASE 580D backhoe with weak hoe

    well, nothing hitting, spools are getting their full travel. Another individual suggested the unloader valve. I may have to look into that to see if that or the steering relief valve could be the issue.. Those are really the last two valves in the system that could be the problem that I...
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    CASE 580D backhoe with weak hoe

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    CASE 580D backhoe with weak hoe

    Thanks for the feedback.. I will check the linkage. I know when I replaced all the spool valve o-rings the pins and lever were not loose at all....at least on the upper portion that I had to remove to get the spools out. Appreciate the comment on the adjustment screw! I didn't think it was...
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    CASE 580D backhoe with weak hoe

    Ok, will send some pics. DM...for everyone's info. this is the steering relief valve with the gage plummed in it, and below is the unloader valve
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    CASE 580D backhoe with weak hoe

    So the dipper is the lowest psi as shown in my test data, (1700) but the other than the stabilizer arms which achieve 3000 psi, all the other hoe pressures are running 2200-2400. I will check my manual but I assume they should also be 3000 like the spec. writeup I mentioned above. The front...
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    CASE 580D backhoe with weak hoe

    yeah, I have the manual and see how it ties into the rest of the hoe functions.. I did the pressure tests based on the manual. The steering pressure is not to spec. but not super low either...If I don't hear from anyone else on what to do next I may just take out that steering relief valve and...
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    CASE 580D backhoe with weak hoe

    Thanks, the steering works fine with the "low" pressure. But from the sounds of it that steering relief valve affects the hoe functions so maybe I will tear that off and disassemble it.....eventually I should run out of parts to rule out!
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    CASE 580D backhoe with weak hoe

    Need some expert advice as to the next steps to diagnose my case 580D backhoe with lack of power in the hoe attachment. I've already got some good advice as to what to rule out on the heavy equipment forum, but at a standstill now. I changed o-rings on the power beyond valve. I've changed out...
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