Installation of DUT-E fuel level sensor on a Caterpillar K120 Installation of DUT-E fuel level sensor on a Caterpillar K120 Outward appearance of a Grader Caterpillar K120 To mount the sensor we have to remove the tank. Otherwise, there is no access to carry out work. Drilling a special hole for mounting the sensor Fuel tank calibration using a measured container Tank calibration process How does DUT-E look like after installing in the fuel tank in the proper location