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  1. #1
    New Member
    Join Date
    Jul 2012
    Posts
    6
    Location
    Dartmouth NS
    Tractor
    JD 2520

    Default JD 2520 Wiring schematics

    Just ordered a tech manual from JD to get a wiring diagram ( start/fuel circuits ) - but does anyone here have one for a JD 2520?

    Parts Department only has harness descriptions, service department was too busy (and slightly under pressure for others) to track it down, so off to a full blown tech manual to trace out a probable short.

    Help

    porters_lake@hotmail.com

  2. #2
    Platinum Member glc24's Avatar
    Join Date
    Dec 2009
    Posts
    894
    Location
    Southwestern, Pa.

    Default Re: JD 2520 Wiring schematics

    but does anyone here have one for a JD 2520?
    I have the CD. What exactly are you after?

    Greg
    2009 2520
    FEL/61" HD bucket/replaceable cutting edge
    62D2 MMM
    IMatch Quick Hitch
    Homemade 3PT Receiver
    Homemade Ballast Box
    Woods GB65 Box Blade
    A "REAL" snow blade --- JD 380A
    90% Restored 1987 JD 316

    MY BALLAST BOX:
    http://www.tractorbynet.com/forums/b...box-build.html
    MY SE SEAT 2520 MOD:
    http://www.tractorbynet.com/forums/j...my-2520-a.html

  3. #3
    New Member
    Join Date
    Jul 2012
    Posts
    6
    Location
    Dartmouth NS
    Tractor
    JD 2520

    Default Re: JD 2520 Wiring schematics

    Greg
    Thanks for the reply - looking for the start / run circuits - having a problem with the selonoid on the injector pump. Do not seem to have a "run" circuit being energized, but have all the feeds from the switch looking good. Not sure if the schematic shows up in "Fuel" or "General".

    Your help would be really appreciated.

    Porters

    Porters_lake@hotmail.com

  4. #4
    New Member
    Join Date
    Jul 2012
    Posts
    6
    Location
    Dartmouth NS
    Tractor
    JD 2520

    Default Re: JD 2520 Wiring schematics

    The selonoid on the pump/injector has what appears to be two feeds - start and run - start works fine, ,,, when you let the key go to run - it dies,,, - looks like a circuit is broken (RED Lead) - It appears that the Red circuit is being powered from a "Run" - ALL Are ASSUMUMPTIONS - Do you're wiring diagrams agree?...

    Still betting this is an electrical prob.

    Porters

  5. #5
    Veteran Member K7LN's Avatar
    Join Date
    Feb 2009
    Posts
    1,545
    Location
    Michigan
    Tractor
    JD455 & JD790

    Default Re: JD 2520 Wiring schematics

    Your solenoid has two coils in it. One is for a pull-in function (start), and the other is a hold-in function (run). Have you checked that both coils have continuity to ground? The hold-in coil gets a lot of hours on it and it wouldn't be unusual for it to open up.

    The other check is to see if you have voltage applied to the red lead with the key on and an operator in the seat.
    JD 790 w/70 FEL & 7 BH on turf tires
    JD 455 w/60" MMM & 54" front blade

  6. #6
    Platinum Member glc24's Avatar
    Join Date
    Dec 2009
    Posts
    894
    Location
    Southwestern, Pa.

    Default Re: JD 2520 Wiring schematics

    Not sure if the schematic shows up in "Fuel" or "General".
    There are quite a few fuel schematics. Have you tried what K7 suggested? I wanted to post the explanation of the fuel start circuit,but being this is a JD manual,of course I can't show you any of the text I feel you may just have to wait until you get yours.

    Greg
    2009 2520
    FEL/61" HD bucket/replaceable cutting edge
    62D2 MMM
    IMatch Quick Hitch
    Homemade 3PT Receiver
    Homemade Ballast Box
    Woods GB65 Box Blade
    A "REAL" snow blade --- JD 380A
    90% Restored 1987 JD 316

    MY BALLAST BOX:
    http://www.tractorbynet.com/forums/b...box-build.html
    MY SE SEAT 2520 MOD:
    http://www.tractorbynet.com/forums/j...my-2520-a.html

  7. #7
    New Member
    Join Date
    May 2013
    Posts
    1
    Location
    Boley, OK
    Tractor
    JD 2520

    Default Re: JD 2520 Wiring schematics

    I need a wiring diagram for an old JD 2520 tractor

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