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ing. Several vendors spoke with School Transportation News on how their products help keep school buses on the road for longer periods of time. Thomas offers the Detroit Diesel DD5 and DD8 engines to save fleets on


fuel costs as well as time and money in maintenance, Lukacs said. Meanwhile, the Bendix ADB22X air disc brakes offer school districts the


opportunity to improve the efficiency of their operations by extending the life of their brake friction thus resulting in friction less often and therefore keeping vehicles on the road longer, Keith McComsey, director of air disc brake & systems for Bendix Commercial Vehicle Systems, explained. “ADB22X air disc brakes provide shorter stopping distances and therefore


have the opportunity to provide a safer vehicle,” McComsey added. “Fleets and/or school districts that drive safer not only help protect drivers and cargo, but also tend to have vehicles on the road longer, rather than being repaired as a result of accidents.” McComsey added the ADB22X air disc brakes also have no grease points and take one-fourth of the time to replace friction than on drum brakes, which allows for shorter maintenance schedules and increased uptime on the road. Another benefit is the lowered risk of Compliance Safety and Accountability violations related to brakes being out of adjustment since ADB22X has an internal adjustment mechanism. Another product, as discussed on episode 39 of the School Transporta-


tion Nation podcast in November, the Cummins B6.7 engine has feature upgrades to meet the new EPA 2021 standards. The engine now allows for extended maintenance intervals, including longer oil drain intervals, more time between fuel filter changes and a complete maintenance-free crank- case ventilation system. Also new for 2021, the B6.7 offers advancements in connectivity to find, prevent, and resolve issues faster. Derek Kiesler, Cummins medium duty on-highway product manag- er, said in order to talk about the 2021 B6.7 engine, he wanted to remind listeners that the 2017 B6.7 delivered a 5 to 8 percent fuel efficiency im- provement over the 2013 ISBe.7. He added that same improvement will still be delivered for 2021. He added that Cummins focused its latest design on emission standards for greenhouse gas requirements for 2021, improving maintenance intervals and further steps to build upon the reliability. He said the new B6.7 engine delivers outstanding values through main- tenance intervals to help reduce planned downtime, which increases the uptime by keeping school buses on the road for longer stretches. Kiesler added this is a huge value for school corporations as it keeps the quantity of buses cycling through the service centers down, which in turn reduces costs for parts and labor. “We are always focused on reliability and uptime, and that never chang- es no matter what products were designing and delivering applications for,” Kiesler told School Transportation News Publisher Tony Corpin on the podcast. “And we really know the safety of our kids, … my two boys they go and get on the yellow bus every morning and come back home and the safety of them is so important, probably now more than ever in this pan- demic time. We really want to give our customers and the parents peace of mind, that the engine powering their bus is one less thing they have to worry about right now.” ●


Find all episodes of the School Transportation Nation podcast at stnonline.com/tag/podcast.


32 School Transportation News • JANUARY 2021


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