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Recent content by johnnye

  1. J

    My 580B can not even move!!!

    Phil Just wanted to let you know that the problems with my 580b travel have been corrected now. Replacing the shuttle pump relief valve spring and ball, cleaning the suction tube screen and cleaning the shuttle tube of old gasket material has done the trick. Thank you guy's for all the advise.
  2. J

    My 580B can not even move!!!

    Phil Thanks for the info. I have ordered the new spring and ball from Case they have to get it from California. You said adding one washer raises the relief pressure approximately 25psi. Do you know how much adding a shim to the regulator valve spring will increase its' psi? I don't think...
  3. J

    My 580B can not even move!!!

    Phil After more inspection and second opinions from people I trust we have come to the (hopefully correct)conclusion that my shuttle pump is O.K.. I am sure the pluggage on my pickup tube was causing a good bit of problems. But now I have disassembled my relief valve and found wear on the...
  4. J

    Case 450c Brake Problems

    Can anyone give me some info on adjusting or repairing the brakes on my 450c foot breaks? They seem to be getting bad, having to push to the floor or sometimes pump the pedals. I always check the fluid levels and they stay good. I hear some people never use their brake pedals, but weren't...
  5. J

    My 580B can not even move!!!

    Phil I removed the pump this weekend. The pickup tube screen was completely plugged from the sides and had about 30% to 40% pluggage from the bottom. It was some old permaseal and some gasket material. Pieces of the gasket seems to be breaking down and falling into the shuttle tube. I inspected...
  6. J

    My 580B can not even move!!!

    Phil Thanks again for the info!!! I was able to check the discharge pressure at the filter housing last night. The pressure at a fast idle was about 175 psi and at high rpm only up to 195 psi. The pressure actually dropped back to about 155 psi for a few seconds when I first increased the rpm...
  7. J

    My 580B can not even move!!!

    Airr and Phil Thanks for the info! I will try these checks this week. Is the shuttle pickup tube screen accessible with a long magnet rod, by removal of the shuttle dip stick cover plate? The history of my machine is,it runs great but the lack of mobility has been increasing for a while, it...
  8. J

    My 580B can not even move!!!

    Hi I have the same problem with my 580b. I have changed filter an fluid and installed a pressure gauge to replace the dash gauge. My pressure in neutral is only 155psi and when it is in gear and shuttle forward or reverse the pressure drops to 30psi. When I apply the clutch while in or out of...
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