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...Read Article >
Do you know how to find coolant leaks?
February 28, 2019
Finding Coolant Leaks Some days, around this time of year, it feels like all we do is chase down coolant leaks. Maybe that has something to do with weather patterns...Read Article >
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...Read Article >
Installation and modification of A/C systems for US and imported vehicles
July 18, 2018
By Ward Atkinson Members have requested information regarding requirements that apply to vehicles produced by OEM vehicle manufacturers, commercial upfitters and independent A/C repair or service facilities that install or...Read Article >
The new world of HD and off-road equipment cooling
June 29, 2018
By Jerry Lemon, Lemco Mobile AC Consulting Welcome to the new world of HD and off-road air conditioning. There was a time, not that long ago, when the HVAC system...Read Article >
Tata Motors and MAHLE partner together to develop a prototype Secondary Loop Mobile Air Conditioning System on a vehicle
July 13, 2017
Tata Motors Limited and MAHLE, one of the world’s 20 largest suppliers to the automotive industry, have signed a joint development agreement for designing and developing a Secondary Loop Mobile...Read Article >
Truck heater control valves
March 20, 2017
By Chris Tyson, MACS heavy duty contributor We have several Class 8 trucks in our fleet and when temperatures begin to drop outside many of their owners visit our shop...Read Article >
New EPA rule allows R-1234yf in certain trucks
October 7, 2016
By Steve Schaeber, MACS Technical Editor If you’ve been waiting to see R-1234yf in something larger than a ½ ton pickup truck, you might not have to wait too much...Read Article >
A fleet for field work: servicing specialty equipment
August 2, 2016
By Stephen Petit, Siefkes/Petit Communications In heavy-duty A/C work, the service vehicle is essentially a shop on wheels — it’s vital for reaching equipment that operates virtually around the clock...Read Article >
Change is coming to heavy duty refrigerants
July 18, 2016
By Steve Schaeber, MACS manager of service training Last year around this time the US Environmental Protection Agency (EPA) finalized Rule # 20, which was a Change of Status Rule...Read Article >
Servicing heavy duty truck, off-road and specialty vehicle A/C
July 14, 2016
By Robert Brocx The heavy duty truck, off-road work machine and specialty vehicle mobile air conditioning (HD MAC) industry has typically utilized air conditioning standards, procedures and technologies developed by...Read Article >
Is your auto repair shop service ready? Find out…
February 29, 2016
Download the March 2016 Issue of ACTION magazineRead Article >