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  1. #1
    New Member
    Join Date
    Jul 2013
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    3
    Location
    Grenada,MS
    Tractor
    John Deere

    Default Trouble with hydraulics

    I have a 2940 John deere tractor and the steering is stiff and when you let go of the steering wheel the front wheels keep moving. Also the front end loader eases up by itself and is jerky when pressure is applied to lever. All help will be appreciated thanks.

  2. #2
    Super Star Member J_J's Avatar
    Join Date
    Sep 2003
    Posts
    15,816
    Location
    JACKSONVILLE, FL
    Tractor
    Power-Trac 1445, KUBOTA B-9200HST

    Default Re: Trouble with hydraulics

    2940 John deere

    Hydraulics:
    Type: closed center
    Valves: 1
    Pump flow: 18 gpm [68.1 lpm]

    If the spring centering springs are weak, pressure at the IN port will make the lift arms rise.

    Open the bottom cans on the valves and look at the springs and tightness of the nuts.
    J.J.

    When I works, I works hard. When I sits and thinks, I goes to sleep.

    Git er done.

  3. #3
    Elite Member Tx Jim's Avatar
    Join Date
    Jan 2007
    Posts
    3,725
    Location
    Coyote Flats,Tx
    Tractor
    JD 4255/Kubota M7040 HDC

    Default Re: Trouble with hydraulics

    Steering & loader control valves are leaking internally. Is loader operated by a independent 2 spool valve or tractor scv??

  4. #4
    New Member
    Join Date
    Jul 2013
    Posts
    3
    Location
    Grenada,MS
    Tractor
    John Deere

    Default Re: Trouble with hydraulics

    The loader works off the remotes on back of tractor. They were on a spool valve and it done the same thing. The floor board gets really hot also.

  5. #5
    Silver Member
    Join Date
    Mar 2006
    Posts
    186
    Location
    Ky
    Tractor
    JD 2240, Long 445, KAMA TS354C

    Default Re: Trouble with hydraulics

    Quote Originally Posted by Aka jack View Post
    The loader works off the remotes on back of tractor. They were on a spool valve and it done the same thing. The floor board gets really hot also.
    sounds like multiple high pressure leaks. My 2240 has the same problems. I'm in the process of rebuilding the power steering. Found a seal and o-ring destroyed. Next is the rockshaft. It's leaking as well as my loader valve. The loader valve is getting replaced with a joystick. My steering column was getting too hot to touch.

  6. #6
    Elite Member Tx Jim's Avatar
    Join Date
    Jan 2007
    Posts
    3,725
    Location
    Coyote Flats,Tx
    Tractor
    JD 4255/Kubota M7040 HDC

    Default Re: Trouble with hydraulics

    Quote Originally Posted by Aka jack View Post
    The loader works off the remotes on back of tractor. They were on a spool valve and it done the same thing. The floor board gets really hot also.
    Sounds as if the poppet valves in the scv are leaking. Your tractor needs some serious hyd diagnostics performed.

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