1. Thank you for visiting HeavyEquipmentForums.com! Our objective is to provide industry professionals a place to gather to exchange questions, answers and ideas. We welcome you to register using the "Register" icon at the top of the page. We'd appreciate any help you can offer in spreading the word of our new site. The more members that join, the bigger resource for all to enjoy. Thank you!

D3G Fuel Gauge

Discussion in 'Dozers' started by E189552, Jun 22, 2019.

  1. E189552

    E189552 Member

    Joined:
    Sep 19, 2018
    Messages:
    20
    Location:
    N. Central Texas
    Fuel gauge on my D3G (BYR01978) always shows full.
    What should the voltage read at the gauge?
    Trying to determine if it's the gauge or sending unit.
    Is there a way to test either of those?
     
  2. heymccall

    heymccall Senior Member

    Joined:
    Feb 20, 2007
    Messages:
    1,228
    Location:
    Monroeville, Pa
    Turn machine on.
    Unplug connector at sending unit.
    Note gauge position.
    Now, jumper the two terminals on the chassis connector to the fuel sender.
    Note gauge position.

    If the gauge is good, it will read full one way, and empty the other.
     
    Last edited: Jun 22, 2019
  3. heymccall

    heymccall Senior Member

    Joined:
    Feb 20, 2007
    Messages:
    1,228
    Location:
    Monroeville, Pa
    The sender is a p/n 224-8597.
    Resistance is typically 0 ohm at full tank, and 90 ohm at empty. Screenshot_20190621-200107_Chrome.jpg
     
  4. Birken Vogt

    Birken Vogt Charter Member

    Joined:
    Nov 30, 2003
    Messages:
    2,735
    Location:
    Grass Valley, Ca
    If it is zero ohms full then the sender wire could be shorted to ground somewhere in the machine.