What should be checked regarding the glad hands and connectors?

The proper condition of glad hands and connectors is crucial for safe operation of a commercial vehicle. They are responsible for sealing the air supply lines between the tractor and trailer. When glad hands are properly connected, it ensures an air-tight seal that prevents leaks. A free of leaks condition is essential because air leaks can lead to brake failure or a loss of other critical systems dependent on compressed air.

Inspecting for any damage is also important. Damaged glad hands can degrade sealing effectiveness and could lead to malfunctions or accidents. Additionally, ensuring the glad hands are securely connected ensures that the trailer remains properly attached to the tractor during transit, maintaining vehicle safety and stability.

Other conditions, such as being loosely attached, cracked, or lacking rubber gaskets, indicate either improper maintenance or an unsafe condition that could cause failure during operation. Thus, the answer emphasizes the need for a thorough inspection of these components to maintain safety and functionality.