In this engaging webinar, Jerry will guide us through the essential A/C service tools specifically designed for heavy-duty and off-road equipment. Whether you’re an experienced technician or just starting in…
By: Alexa Murphy As the weekend winds down, we extend our heartfelt gratitude to Jerry Lemon and all those who joined us for our HD A/C Boot Camp. It was…
by: Alexa Murphy Membership, Events, & Marketing Assistant @ MACS Have you heard? MACS is going to be hosting an exclusive two-day boot camp live at the MACS headquarters! The…
By: Jerry Lemon for MACS ACtion Magazine Jul/Aug 2023 Issue Everyone I know doing A/C service on HD trucks and Heavy Equipment is slammed with work. It seems rather counter…
By Steve Schaeber, MACS Technical Editor The mobile air conditioning industry has, so far, used R-1234yf refrigerant primarily in passenger vehicles and light duty trucks. Although MACS has reported on…
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.
