What should you do if a second trailer does not have spring brakes?

If a second trailer does not have spring brakes, the recommended action is to drive the tractor close to the trailer, connect the emergency line, charge the air tank, then disconnect the emergency line. This procedure is essential because it ensures that the trailer has an adequate air supply to operate the service brakes.

Spring brakes are a crucial safety feature because they automatically engage to hold the trailer in place when the air pressure drops. If a trailer lacks spring brakes, connecting the emergency line allows the air system to fill the air tanks and potentially facilitate the air-brake system operation, thereby providing better control while hauling the trailer. Once the air pressure is charged, disconnecting the emergency line prevents any malfunctioning of the system that could affect your driving.

This approach addresses the safety and operational integrity of the braking system when dealing with trailers that do not have spring brakes, ensuring that the driver can safely operate the vehicle and maintain control during transit.