What action should you take regarding your brakes after coupling a trailer?

Testing the brakes at low speed after coupling a trailer is crucial for ensuring safety and proper functionality. This action helps confirm that the braking system between the tractor and the trailer is working effectively, allowing the driver to identify any issues before heading out on the road. By running the vehicle at a low speed, the driver can safely assess how the brakes respond and make any necessary adjustments. This is particularly important since the dynamics of braking can change once a trailer is attached, and testing helps to ensure that both the tractor and trailer can stop securely and together.

Evaluating the braking system in this way also provides practical experience, allowing the driver to gain confidence in their ability to handle the combined vehicle. This is a critical step for preventing potential accidents due to brake failure or improper adjustments after coupling the trailer.