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John Deere 3140/2940 Hi-Low

Discussion in 'Agricultural Equipment' started by GregsHD, Jun 8, 2019.

  1. GregsHD

    GregsHD Senior Member

    Joined:
    Sep 26, 2014
    Messages:
    476
    Occupation:
    Self Employed HD Mechanic
    Location:
    Mahood Falls, BC
    Anyone have a hydraulic schematic of the Hi-Low system on a 3140/2940 or similar? I want to know the flow paths in the top cover/valves.

    Thanks
     
  2. GregsHD

    GregsHD Senior Member

    Joined:
    Sep 26, 2014
    Messages:
    476
    Occupation:
    Self Employed HD Mechanic
    Location:
    Mahood Falls, BC
    No longer needed, figured it out.

    Top cover was siliconed at some point without a gasket, blocking the drain for the Hi/Low spool, pressuring the cover and forcing the spool into low.
     
    JPV likes this.