Vehicle Systems: Coupling Systems

The primary function of the coupling system in a tractor-trailer is to connect the tractor to the trailer, the power to the payload. The two key components in the coupling system are the fifth wheel and the trailer kingpin. Coupling the tractor to the trailer through a single 2-inch kingpin is one of the most critical areas of tractor/semitrailer operation.

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This is a sample course from our training library. You're welcome to view the course for personal use. Drivers of member fleets will receive a certificate after completing the online course. Please sign into your account to take an assignment. A certificate will be delivered electronically to your driver qualification file.

 
Uber
First Transit
Shamrock Foods Driver
Reddaway
Lincare
denver-express
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apria
 

Customer Comments


Dennis Atencio - Director of Safety
Apex Transportation


Bob Bowman - Director, Safety & H.R.
Alpine Lumber Company


Tim Long - Director of Safety
Epes Transport System


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