DOT Entry Level Driver Training – Basic CMV Operation: Coupling and Uncoupling
One of the basic skills necessary to drive a combination vehicle is coupling and uncoupling a tractor unit to and from a trailer. Coupling requires several steps, including inspecting the area and vehicle ahead of time, aligning the tractor to the trailer, backing up slowly, checking the trailer height and kingpin-fifth-wheel alignment, connecting the air lines and electrical cord, and backing under the trailer until the kingpin is locked into the fifth-wheel coupler. You must make sure the kingpin is properly locked into the fifth-wheel coupler, test the coupling, inspect and test the trailer brakes, and make sure the trailer lights are working correctly before it is safe for you to pull out onto the road. Uncoupling involves some of the same steps, but in a different order and often in reverse. The goal is the same – to make sure the tractor unit and trailer get where they need to be safely at the end of each day. This course covers the basic steps needed to safely couple and uncouple a tractor unit to and from a trailer. It also covers coupling to and uncoupling from a second trailer.
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Learning Objectives
By the end of this course, you will be able to:
- Describe how to prepare a tractor and trailer for coupling
- Identify the steps needed to couple a tractor to a trailer
- Explain how to ensure a coupling is safe and secure, before you drive a combination vehicle
- Identify the steps needed to uncouple a tractor from a trailer
Specs
Course Level | Fundamental |
Languages | English |
Compatibility | Audio, Video, MobileReady, Responsive |
Course Applies To
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