Improving uptime is paramount in the heavy duty construction equipment business. Failure ofcritical components in the heavy duty machine may lead to unnecessary stops and expensivedowntime. The torque converter, a complex component of the driveline, transmits and multipliestorque from the engine to the gearbox, and its failure may not only lead to the machine standingstill but may also lead to damage of other parts of the automatic transmission.For adequate condition monitoring of the torque converter, different sensor data are measuredon a construction equipment machine during controlled driving sessions. Vibration has beenmeasured on the torque converter. An initial investigation of the vibration measured on the torqueconverter has been carried out to identify its vibration properties in order to enable its healthmonitoring to prevent failure. Initial signal analysis of the data have been carried out using OrderPower Spectrum and Order Modulation Spectrum methods. The results indicate that the torqueconverter vibration properties contain information relevant for early fault detection.