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  1. #1

    Default john deere 2940

    my 2940 all of the lift just quit all of the suden other day lift arms and hydrulics all quit at once anyone no what this might be

  2. #2
    Veteran Member
    Join Date
    May 2000
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    1,125
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    Escaped to The Algoma

    Default Re: john deere 2940

    When was the last time you changed the hydraulic fluid and filter?

    Was it making any funny noises prior to no hyd functions?

    How many hours are on the tractor?


  3. #3
    Elite Member
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    Mar 2002
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    3,390

    Default Re: john deere 2940

    Did it literally quit "all of a sudden", or did it work when you left it and not work when you came back? Yanmars have a knob under the seat that stops the flow of fluid and locks the hydraulics in place. Maybe JD's do also. They can mysteriously get locked when you leave the tractor alone.

  4. #4

    Default Re: john deere 2940

    My JD (950) has that knob. I've been led to believe that most tractors do. But my experience is not particularly broad. Stuck in the up or down position, or somewhere in between? What all hydraulics other than the 3pt? Power steering, too? FEL?

    Steve

  5. #5
    New Member
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    Apr 2012
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    3
    Location
    Cedar City, Utah
    Tractor
    Massey Ferguson 1080

    Default Re: john deere 2940

    I have the same problem. I have disconnected the supply line to the front hydraulic pump and there is no oil getting to the pump. Is there a valve or something keeping it from coming through? I have changed the hydraulic filter and oil and have cleaned the screen.

  6. #6
    Elite Member Tx Jim's Avatar
    Join Date
    Jan 2007
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    4,266
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    Coyote Flats,Tx
    Tractor
    JD 4255/Kubota M7040 HDC

    Default Re: john deere 2940

    Quote Originally Posted by wogdalton View Post
    I have the same problem. I have disconnected the supply line to the front hydraulic pump and there is no oil getting to the pump. Is there a valve or something keeping it from coming through? I have changed the hydraulic filter and oil and have cleaned the screen.
    If you're not getting any trans pump pressure to frt pump there could be one of several reasons. Failed trans pump(broken gear),cracked/leaking supply tubes that furnish oil to ind pto or hyd hi-lo,stuck hyd filter relief valve

  7. #7
    Elite Member Tx Jim's Avatar
    Join Date
    Jan 2007
    Posts
    4,266
    Location
    Coyote Flats,Tx
    Tractor
    JD 4255/Kubota M7040 HDC

    Default Re: john deere 2940

    Quote Originally Posted by joe460 View Post
    my 2940 all of the lift just quit all of the suden other day lift arms and hydrulics all quit at once anyone no what this might be
    Joe
    Check to be sure the frt hyd pump coupler is intact and that hyd pump shaft is turning when engine is running.

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