... Automated Lubrication Data The LUBExpert ON-GUARD from SDT Ultrasound Solutions is the latest edition to a line of best-in-class, precision ultrasound condition monitoring data collectors. The ON-GUARD is an automated precision lubrication system designed to monitor friction levels of critical rotating production equipment and inject grease precisely as needed to ensure an optimal separation of surfaces. The following Case Study looks at an ON-GUARD installation at an Automotive Manufacturing Facility located in Canada. The ON-GUARD was installed to monitor friction levels on two supply fans. The assets can be seen in Figure 1.