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  1. #1
    Bronze Member
    Join Date
    Jun 2011
    Posts
    55
    Location
    North Central WV
    Tractor
    Deere 2520

    Default Glow Plug Question

    I have a 2011 2520. The only indication that it has glow plugs in the manual is in the fuse section. Nothing in the manual tells me to turn the key and wait before starting in clod weather, and there is no light like I have seen on old diesel cars. How do I tell if they are working properly? I don't want to find out they are not with a bunch of snow on the ground.

  2. #2
    Silver Member
    Join Date
    Jun 2001
    Posts
    169
    Location
    Northern Minnesota
    Tractor
    Kubota and John Deere tractors 20-40HP; skid steer loader

    Default Re: Glow Plug Question


  3. #3
    Gold Member dmay's Avatar
    Join Date
    May 2010
    Posts
    440
    Location
    Winnipeg, MB
    Tractor
    2010 JD2320

    Default Re: Glow Plug Question

    2320 has a dash glow plug light and the manual states:

    Cold Weather Starting Aids Recommendations:
    Turn key to ON position for 3 seconds to activate glow plugs.

    Silly that the 2520 is not the same.

    OMLVU16740_A7
    .
    Darrell

    JD2320, 200CX, 53" Bucket, 54" QH SnowBlower, iMatch, Ballast Box, LR1072, RC2048, GM3060, 647 Tiller, SS1023B

  4. #4
    Bronze Member
    Join Date
    Jun 2011
    Posts
    55
    Location
    North Central WV
    Tractor
    Deere 2520

    Default Re: Glow Plug Question

    Quote Originally Posted by dannyk View Post
    That explains it. I wondered about that light, but had not given it much thought since it always went off immediately. I probably have not started the tractor under 50 degrees yet. Thanks!

  5. #5
    Platinum Member glc24's Avatar
    Join Date
    Dec 2009
    Posts
    894
    Location
    Southwestern, Pa.

    Default Re: Glow Plug Question

    Quote Originally Posted by hillbilly rick View Post
    That explains it. I wondered about that light, but had not given it much thought since it always went off immediately. I probably have not started the tractor under 50 degrees yet. Thanks!
    That is really strange! We have the same tractor!
    No matter what the temperature is,summer or winter,my glow plugs always cycle when I turn the key to "on".

    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

  6. #6
    Gold Member smalltown's Avatar
    Join Date
    Jan 2011
    Posts
    381
    Location
    Western Maine

    Default Re: Glow Plug Question

    glc24 I'm with you I have a 2011, JD2520 took delivery this summer. I was told by the dealer that it has a manifold heater not glow plugs, but that aside my lamp lights in warm or cold weather each time I start the tractor.
    2011, JD2520, 62D MMM, 200CX loader, iMatch Quick Hitch, Ballast Box, #46 Backhoe

  7. #7
    Gold Member PCABE5's Avatar
    Join Date
    Oct 2007
    Posts
    290
    Location
    NW Wisconsin
    Tractor
    JD 2520

    Default

    There is no temp sensor in the system so it comes on every time you start the tractor. If your light does not come on every time you start-up (hot or cold) than you have an issue with the electrical circuit.
    2012 JD 2720 | 72" MMM | Curtis Hard Cab | 200CX FEL 73" bucket | JD 72" Rr Blade | Michigan Suspension Seat | SpeeCo Q-Hitch | JD Ballast-Box | 5ft King Kutter Brush Cutter |

  8. #8
    Bronze Member
    Join Date
    Apr 2011
    Posts
    51
    Location
    Indiana

    Default

    My 2011 takes 5-10 seconds (at least) for the light to go out. I always wait for it to go out before starting. Sometimes if I am on the right side of the tractor I will turn the key then walk around and get on while waiting for the light to go out.
    2011 JD 2520, 200CX, 62D MMM, front blade, and RC2060 rotary cutter

  9. #9
    Gold Member pdp11's Avatar
    Join Date
    Nov 2010
    Posts
    266
    Location
    Pittsboro, NC
    Tractor
    John Deere 2520 CT

    Default

    The earlier ( 2006-2008 ) 2520 had a different variation of the engine now being used. It had an intake heater, where the engine used since then has glow plugs. I have a 2010 model and the light comes on for about 10-15 seconds every time I start the tractor, even if it's already warmed up.
    John Deere 2520 - 200CX, 62D, RB2060
    John Deere 316 - 38" Deck, 3pt Hitch

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