After the jaws lock when coupling the trailer, what should you do next?

Performing a tug test after the jaws lock when coupling the trailer is essential to ensure that the connection is secure. This test involves gently pulling forward to check that the trailer is firmly attached to the tractor and that the locking mechanism is functioning correctly. It is a critical safety measure to prevent any accidental disconnection while on the road.

Following the tug test, visually confirming that the coupling is secure is also necessary. This includes checking that the locking mechanism is fully engaged, the safety pin is in place, and that there are no visible gaps or issues in the connection. Together, the tug test and the visual inspection provide a complete check that the coupling is safe for travel.

The other options do not adequately ensure the safety and security of the trailer connection. Immediately driving forward to test the coupling does not provide the same assurance as a controlled tug test. Fetching additional tools is unnecessary at this stage, as the basic coupling inspection should be sufficient. Checking the trailer's load weight, while important for compliance and safety, is not directly related to confirming that the trailer is properly couplered to the vehicle.