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Coupling Equipment (Kingpin, Apron, Locking Jaws, Safety Latch)

After coupling, the release handle is in but the safety latch will not close. What should you conclude?

  • A.Drive anyway, the latch is optional
  • B.Something is wrong with the lock or handle position; inspect the coupling and do not drive until it is correct
  • C.Remove the latch permanently
  • D.The latch never closes on loaded trailers
Correct answer

B. Something is wrong with the lock or handle position; inspect the coupling and do not drive until it is correct

Why

A latch that will not engage is reporting that the handle is not fully home or the mechanism is damaged. That warning must be resolved on the ground, not discovered on the highway.

Manual topic: Combination Vehicles - Coupling Equipment · From the Combination Vehicles practice bank (CV-117).

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