Connection is key 🤝 A super dog trailer was recently presented for a heavy vehicle inspection, where the auto tow coupling was found loose in its boss. The trailer was issued a major defect notice and directed that it must not be used on the road until the defect is rectified. Movement like this puts additional stress on a tow coupling that can result in the trailer separating from the towing unit. Remember to take extra care when attaching and inspecting tow couplings to ensure they are secure