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Bobcat 763c Eratic fuel guage

Discussion in 'Skid Steers' started by KyDirt, Dec 5, 2017.

  1. KyDirt

    KyDirt Member

    Joined:
    Jan 16, 2015
    Messages:
    22
    Occupation:
    Construction Superintendent
    Location:
    London Kentucky
    Fuel guage 1997 bobcat 763c.
    The fuel gauge does operate (not properly) but the needle seems to bounce/vibrate when operating. It's not reading accurately. Likely the sending unit? If so, couldn't find a thread with issue but I know it has to be common.
     
  2. xgiovannix12

    xgiovannix12 Senior Member

    Joined:
    Feb 22, 2012
    Messages:
    474
    Occupation:
    Operator/Mechanic/Truck driver
    Location:
    New York
    mine does the same thing I think its normal since the fuel is moving around when using the machine
     
  3. Delmer

    Delmer Senior Member

    Joined:
    Jan 4, 2013
    Messages:
    6,065
    Location:
    WI
    A typical sending unit is rheostat/variable resistor. You can check the gauge by grounding the wire at the sending unit. The gauge should go to full and stay there. If it still bounces around then you can try to track that or live with it. Disconnect the wire and the gauge shouldn't move/stay at empty.

    An old sending unit can wear out, the little arm loses springiness, rubs the wires, gets varnish built up, etc. So the sending unit can easily cause this.
     
  4. KyDirt

    KyDirt Member

    Joined:
    Jan 16, 2015
    Messages:
    22
    Occupation:
    Construction Superintendent
    Location:
    London Kentucky
    Had a poor connection at the sending unit connector. Shifted the harness when I was removing hydraulic reservoir today and it momentarily quite bouncing. Cleaned connector and relieved the strain on harness. Thanks for the advise.