Step by step instruction on how to do a coupling and uncoupling on a tractor trailer. Presented by J-Tech's Lead Instructor Mr. Ricks. Subscribe now for more training videos from J-Tech. J-Tech is located in Jacksonville, FL and offers programs in Commercial Truck Driving, Automotive Technology and Diesel Technology. For more information call (904) 328-5599 or visit http://www.jtech.org/. Follow us on http://www.instagram.com/jtechinstitute, http://www.twitter.com/jtechinstitute or http://wwww.facebook.com/jtechinstitute to see more.