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  1. #1
    New Member
    Join Date
    Oct 2012
    Posts
    2
    Location
    Londonderry , Northern Ireland
    Tractor
    John Deere 3050

    Default John Deere 3040 wiring diagram

    Hi I would need a wiring diagram for a 3040 John Deere tractor . I'm having problems with it the ignition light glows dimly when the tractor is switched off and runs the batteries flat as well

  2. #2
    Elite Member
    Join Date
    Apr 2012
    Posts
    4,090
    Location
    Somewhere USA
    Tractor
    My tractor is an old

    Default Re: John Deere 3040 wiring diagram

    Quote Originally Posted by Grahame Stronge View Post
    Hi I would need a wiring diagram for a 3040 John Deere tractor . I'm having problems with it the ignition light glows dimly when the tractor is switched off and runs the batteries flat as well
    Greetings and Welcome to TBN. You will get a better response to your question in the John Deer tractor forum John Deere Owning/Operating here on TBN. again.. I friendly welcome from Middle Tennessee USA.

  3. #3
    Elite Member
    Join Date
    Jun 2011
    Posts
    2,517
    Location
    NE Oklahoma
    Tractor
    MF 230 and Mitsubishi D2000

    Default Re: John Deere 3040 wiring diagram

    Welcome from Oklahoma.

    Ken
    Massey Ferguson 230
    Mitsubishi D2000

  4. #4
    Administrator Briana03's Avatar
    Join Date
    Jul 2010
    Posts
    3,203
    Location
    San Diego, California
    Tractor
    None

    Default Re: John Deere 3040 wiring diagram

    Welcome to TBN

    I moved your thread to the John Deere Owning/Operating forum.

  5. #5
    Elite Member Tx Jim's Avatar
    Join Date
    Jan 2007
    Posts
    4,434
    Location
    Coyote Flats,Tx
    Tractor
    JD 4255/Kubota M7040 HDC

    Default Re: John Deere 3040 wiring diagram

    Try disconnecting the alternator &/or voltage regulator and I'll bet the light goes out.

  6. #6
    New Member
    Join Date
    Oct 2012
    Posts
    2
    Location
    Londonderry , Northern Ireland
    Tractor
    John Deere 3050

    Default Re: John Deere 3040 wiring diagram

    I got the alternator serviced which has a built in regulator but it made no difference and then discovered that someone had been at the wiring hence the need for the wiring diagram

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