What must be done when inspecting a fifth wheel hitch?

When inspecting a fifth wheel hitch, checking the jaw adjustment is critical for ensuring the proper operation and safety of the hitch. The jaws of the fifth wheel are responsible for locking onto the kingpin of the trailer securely. If the jaws are not properly adjusted, it can lead to improper coupling, resulting in significant safety hazards, including the potential for the trailer to disconnect from the towing vehicle while in transit.

The adjustment of the jaws ensures they can fully engage the kingpin, creating a secure lock that is essential for safe hauling. Regularly checking this adjustment helps identify wear or changes in performance, which can prevent accidents and enhance the overall reliability of the towing setup.

While adjusting wheel height, replacing table bushings, and adjusting the sliding mechanism are also important maintenance tasks, they focus on different aspects of the fifth wheel operation. Ensuring the jaws are properly adjusted takes precedence because it directly affects the hitch's ability to safely connect the trailer to the truck.