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Bring your emissions systems questions to this live Q&A May 20

Gray notes his shop works on all makes and models of heavy-duty trucks and trailers now, more than half a century since his father, Roger Gray, founded the garage in 1963. Gray started working in 1976 and, as with Mallinson, has persevered through the evolution of electronics in the automotive industry. . You have to know how the system works and how it is wired, because there are many things that can cause a fault code other than bad underlying components.   For many trucking today, Buchs said, it feels like what we know about these systems is they work, or they don t work. And there s often little in between.

Emissions control systems maintenance issues live Q&A

What are the biggest problems service techs are seeing with emissions systems in late-model equipment? What can owner-ops do to effectively head those off? How can drivers better equip shop personnel with information to effectively correct problems when they arise or assist them in preventing issues in the first place? Rather than approach emissions equipment with the proverbial band-aid-and-antibiotic salve when something breaks, what might constitute a good PM program for emissions equipment maintenance? These questions – and your own – we ll address in this hour-long event. Bring your own questions Whether you can attend the live broadcast or not, we want to hear from you about your experience with emissions-system maintenance, particularly any questions you have about how they work or how best to troubleshoot issues. Send questions for these pros directly to discussion moderator and

Automatic slack adjusters called automatic for a reason

Updated Apr 29, 2021 Updated April 29, 2021, republication ahead of the May 4-6 Roadcheck inspection event, taking place nationwide at a scale house near you.  The National Transportation Safety Board recommendations to brake equipment suppliers have long emphasized caution about manual adjustments for pushrod stroke when automatic slack adjusters [ASAs] are installed. Given those warnings, “it never ceases to amaze me that folks are still attempting to manually adjust auto-slacks after their initial installation,” said Bryan Duross of Technical Training Services, producers of interactive educational modules on air brake systems and more. Overdrive sister publication Trucks, Parts, Service. Duross’ company’s interactive training modules, he noted, are aimed mostly at pro instructors in the programs of community colleges, technical schools, truck and coach service outfits, CDL schools and fleets. Yet he also emphasized a quick course designed specifically for individual

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