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580 B Hydrolic pressure

Discussion in 'Tractor/Loader/Backhoes' started by Bertrrr, Apr 17, 2017.

  1. Bertrrr

    Bertrrr Well-Known Member

    Joined:
    Sep 5, 2016
    Messages:
    50
    Occupation:
    mechanic
    Location:
    South Louisiana
    What should the Hydrolic pressure be on this old machine ? There is no longer a gauge in place so I am curious as to how much pressure the pump is putting out. When I put a strain on the backhoe it slows down the engine so I am thinking the pump is still pretty strong. Thanks for the input.
     
  2. sheepfoot

    sheepfoot Senior Member

    Joined:
    Feb 17, 2008
    Messages:
    1,259
    Location:
    wilmington nc
    Your 580B rated pump output is 23 gpm at 2000 psi at 1900 rpm. Your loader valve main relief setting is 2200 +/- 75 psi at full throttle. Your loader with (bucket empty) full raise up in 4.2 seconds.