What do locking jaws need to be checked for in a fifth wheel inspection?

During a fifth wheel inspection, it is crucial to ensure that the locking jaws are fully closed around the kingpin. This is essential for maintaining a secure connection between the truck and the trailer. If the locking jaws are not fully closed, there is a risk of the trailer detaching while in motion, which can lead to dangerous situations on the road. A secure connection ensures stability and safety during transport, preventing any unwanted movement between the truck and trailer.

The other choices do not focus on the primary objective of ensuring a secure and functional hitch. While safety mechanisms are important, the direct requirement during the inspection is to confirm that the locking jaws are properly closed to secure the kingpin. Similarly, visibility through paint or having loose jaws for maneuverability is not relevant to ensuring a safe connection between the truck and trailer.