Brakes | be that the component is not getting power due to a worn wire or poor connection. As emphasized earlier, check these possibilities before replacing the component. • Have a driver describe any system behavior that they believe indicates the technology is not working properly, and review the manufacturer provided list of detailed scenarios and tests. Th ese typically include yes or no questions about the performance of the vehicle’s cruise control, dashboard display icons, distance alerts and system interventions. Wheelends Fleets utilizing today’s advanced safety systems oft en spec air disc brakes to complement them and bring maximum value by helping vehicles shed speed safely, quickly and eff ectively. When it comes to the wheelends and air disc brake upkeep, Bendix Spicer Foundation Brake – which combines and expands the complementary wheelend foundation brake technologies of Bendix Commercial Vehicle Systems and Dana Commercial Vehicle Products – recommends the following regular preventive maintenance: • Checking caliper movement and mounting bolts, and ensuring the caliper slides freely. • Measuring rotor thickness and looking for cracks beyond allowable limits. • Inspecting pads for wear. Minimum allowable thickness is 2mm of friction material. • Ensuring proper running clearances between the rotor and pads. • Looking for evidence of damage, including corrosion, on tappets and boots. • Checking the mounting hardware of calipers and air chambers, and securing chamber mounting nuts. Equipped together, air disc brakes, stability control and collision mitigation provide a highly eff ective and valuable vehicle safety package — and the right maintenance, done properly, protects fl eets, drivers and everyone sharing the road. Fred Andersky is the director of customer solutions for the Controls Group and director of government and industry affairs at Bendix Commercial Vehicle Systems (www.bendix.com). The company develops and supplies active safety technologies, energy management solutions and air brake charging and control systems and components under the Bendix brand name for medium and heavy duty trucks, tractors, trailers, buses and other commercial vehicles throughout. He has been involved with safety technologies at Bendix for more than 10 years and presents to government, industry and media about current and future technologies. Andersky holds a Class A CDL and often drives demonstrations of Bendix technologies. VehicleServicePros.com/10094182
FleetMaintenance_October_2016
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