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Heavy Duty

Over the road: Auxiliary power unit engine cooling systems

July 13, 2020

As time goes on, Auxiliary Power Units (APUs) continue to play a larger role in the over the road trucking industry. Idle laws that vary state by state are placing restrictions on drivers across the nation. Because overnight idling to run the OEM AC system is now illegal in many places, the installation of an APU is required. Diesel APUs are the most popular solution to these restrictions, as they can provide heat, air conditioning, battery charging, coolant warming, and electrical power capabilities to drivers. These units are powered by small diesel engines, which can be run for extended periods of time while drivers are resting.
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Long exposure of car driving down highway

VOCs and the ‘new car smell’

April 27, 2020

By Aaron Canada, Engineering Coordinator, Keihin North America Inc. Many people say they love the smell of a new car. Buying one can be very exciting for multiple reasons. For...
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Long exposure of car driving down highway

Stop complaining about the technician shortage…

April 8, 2020

…and DO SOMETHING ABOUT IT! By Elvis Hoffpauir C.O.O. MACS Worldwide That was the principal message from Peter Meier, Director of Training at Motor Age. Peter, along with MACS Technical...
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The future of cab filtration, HVAC design, and operator respiratory health

July 23, 2019

By Jeff Moredock The case for the osha silica regulation and its impact on mobile HVAC design “Why does the OSHA Silica regulation exist?” To protect workers from the dangerous...
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Long exposure of car driving down highway

Heavy duty truck and off-road training digest

April 25, 2019

By Dr. Alex Moultanovsky The MACS session began with Dan Spurgeon of CAT who introduced the new Track-Type Tractor D6. Dan pointed out that the D6 is equipped with a...
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Made in America?

November 12, 2018

By Keith Leonard, Esquire The United States and Mexico reached a trade agreement in August of this year. This deal has been publicized as a renegotiation of the North American...
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Long exposure of car driving down highway

Time counts!

August 1, 2018

By Angie Kilbourne Despite the awesome features available on social media, it can be a time sink — whether as part of a business’ marketing program or as a consumer....
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Long exposure of car driving down highway

Marks Air installs a new generation

June 16, 2015

If you receive an email from Gordon Marks of Marks Air in Tampa, Florida you’ll see his email signature includes the tag, “Yes! We’ve been doing this for OVER 44...
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A/C Diagnostics & Troubleshooting

June 1, 2015

It’s long been said that opinions are like smiles… everybody’s got one! And that’s certainly true when it comes to diagnosing and troubleshooting mobile A/C systems. Depending on whom you...
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