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John Deere 690ELC issues

Discussion in 'Excavators' started by Ford tractor, Dec 3, 2018.

  1. Ford tractor

    Ford tractor New Member

    Joined:
    Dec 3, 2018
    Messages:
    3
    Location:
    Ohio
    New to the forum.

    Borrowed a friends John Deere 690ELC for some farm work. Started it up for the first time when it was around 28 degrees. Slow to start but started and I let it idle for about 10 minutes. Drove it to a dead tree I wanted to push over. Everything was running fine. I had put it in E mode for this job. After dropping the tree, I noticed the engine idled down but then back up by its self. It did this another time before thumping to a stop. When I tried to restart it, it just made a grinding noise. I have tried charging the batteries up and still the same thing. I also jumped the starter and found it doesn’t seem to turn the motor. Kind of a grindy sound to it. When I turn the key to the “on” position, something activates Some kind of pump that sounds like it’s running rough. The starter it’s self wont engage with the key.

    Is there a switch or something possibly on or where should I look into so I can start this thing. Thanks
     
  2. Dave Neubert

    Dave Neubert Senior Member

    Joined:
    Jul 19, 2018
    Messages:
    443
    Location:
    Monroe NC
    sounds like the starter stayed engaged pull starter it is probably toast
     
  3. backhoe1

    backhoe1 Well-Known Member

    Joined:
    Aug 24, 2007
    Messages:
    93
    Location:
    South Dakota
    I had a 690ELC, went through a starter every year... Several times it stayed engaged and totally destroyed it
     
  4. Ford tractor

    Ford tractor New Member

    Joined:
    Dec 3, 2018
    Messages:
    3
    Location:
    Ohio
    I was kind of thinking the same. Any reason there is a loud humming/grinding sound when I turn the key to on though?
     
  5. Shimmy1

    Shimmy1 Senior Member

    Joined:
    Aug 14, 2014
    Messages:
    2,773
    Location:
    North Dakota
    Starter is stuck engaged. When you turn the key on, it switches the battery disconnect on, which in turn powers the starter. Remove the + battery cable from starter and see if noise stops.
     
  6. Ford tractor

    Ford tractor New Member

    Joined:
    Dec 3, 2018
    Messages:
    3
    Location:
    Ohio
    Great info, thanks!

    Is there any fuel shut off valve on the 690sby chance?
     
  7. thepumpguysc

    thepumpguysc Senior Member

    Joined:
    Mar 18, 2010
    Messages:
    5,240
    Occupation:
    Master Inj.Pump rebuilder
    Location:
    Sunny South Carolina
    Yes.. if u have the Stanadyne inj pump.. theres an electric solenoid that shuts the fuel off..
    Its on/in the TOP COVER.. 2 studs + & -..12v
    The - is usually grounded thru the pump body so all you have to do is run 12v to the other stud..
    You'll HEAR it click..