• Thank you for visiting HeavyEquipmentForums.com! Our objective is to provide industry professionals a place to gather to exchange questions, answers and ideas. We welcome you to register using the "Register" icon at the top of the page. We'd appreciate any help you can offer in spreading the word of our new site. The more members that join, the bigger resource for all to enjoy. Thank you!

Recent content by Glen Weldon

  1. G

    580B CK model 35 hoe hydraulic issues since replacing swing cylinders...

    I measured the bucket today. It is 34" not 24" as I initially stated. Good eye!
  2. G

    580B CK model 35 hoe hydraulic issues since replacing swing cylinders...

    I did indeed torque the through bolts. I didn't have a torque spec but I torque them to 40 ft lb. It was tough to get there because the bolt wants to twist. That bucket has perforations on the side. Looks like a drilled plate was welded on the side or maybe it came that way I don't really know...
  3. G

    Case relief valve disassembly....how is it done?

    Got the valve reassembled and installed today and it works just fine! No leaks either. I posted some pics in my original thread about this issue. Here's the link to that post.... Scroll to the end of the page here...
  4. G

    580B CK model 35 hoe hydraulic issues since replacing swing cylinders...

    In another thread I mentioned that the valve bank in my 580B is actually one of the valves that was used on the 580C. I had to order a manual for a 580C so I could cross-reference O-rings and get them ordered. Well, over the last two weeks I removed the valve bank out of the machine and...
  5. G

    Case relief valve disassembly....how is it done?

    Funny you should mention the swing section. I don't know if you have followed my other threads about my backhoe hydraulics not working at all, but this whole problem started when I had the swing cylinders rebuilt. I left them sit for about 2 years before reinstalling them. When I did, I...
  6. G

    Case relief valve disassembly....how is it done?

    Thank you for your post. I am assuming (maybe incorrectly) that the main relief valve(s) are at or near the pump or the loader valve. As far as I can tell, the inlet and outlet for the backhoe valve body have relief valves, but neither are adjustable. If the main relief valves aren't on the...
  7. G

    Case relief valve disassembly....how is it done?

    Yeah, about 50% of the valves had the crud in them. I have my solvent tank filled with diesel. It works well on the crud and is much safer. It's also much easier on the hands!
  8. G

    Case relief valve disassembly....how is it done?

    I don't see your message as derailing anything. I thank you for the comment. If you read the fourth post in this thread, that is where I detail what I'm doing to ensure the valves are set pretty-much how they were before I disassembled them. I don't know if these are the type of thing where...
  9. G

    Case relief valve disassembly....how is it done?

    For those of you who haven't seen what a Case relief valve looks like, here's a picture that shows the body of the valve with all the components that go inside with fresh new O-rings. Some of the valves have a piece of steel rod inside the spring. I suspect this is to limit the travel of the...
  10. G

    Case relief valve disassembly....how is it done?

    Thank you Clueless2 for your kind words. I have learned a bunch from people in this forum. It's great when people who know share what they know. Unfortunately this is my first real dealings with a real hydraulic system. I'm learning a bunch As far as the cross-referencing, I will explain...
  11. G

    Case relief valve disassembly....how is it done?

    Just an addendum. The thing I called the "return" section above is actually called the outlet section. I brought it inside and while examining under a fairly bright light, I could just barely see the end of the plunger, Det. #15, through one of the ports. I used an O-ring pick, one of the...
  12. G

    Two different size cylinders on Case model 35 hoe... what should I do?

    Howdy. The saga with my worn-out hoe continues. I'm still trying to figure out why my hoe functions don't work. I have all the O-rings to rebuild the valve bank and hopefully tomorrow (Saturday 11/11) that's what I'll be able to do. I've been noticing that my boom cylinders are all oily...
  13. G

    Case 480c outriggers won't lift tractor

    Good to hear you got it working.
  14. G

    Case relief valve disassembly....how is it done?

    Thank you for your reply. I am happy to be speaking to somebody who knows much more about this than I do. I have briefly read the manual concerning resetting the relief pressure on the valves. I do not have a hand pump nor a fixture, however I believe (correct me if I'm wrong) that it should...
  15. G

    Case relief valve disassembly....how is it done?

    Well, I was fiddling with the snap ring using snap ring pliers, trying to work around the nut when the whole thing exploded! It is now disassembled. Now if I can find the snap ring!
See more
Top