What is the function of the glad hands on the MTV?

The glad hands on the MTV (Medium Tactical Vehicle) are critical for the functionality of the air brake system in combination with the trailer or other trucks. They serve as the connection points for the air supply lines that provide the necessary compressed air for the operation of the trailer's brakes. This is particularly important in air brake systems, where the operation of brakes on the trailer is dependent on the air pressure supplied by the towing vehicle.

When the glad hands are properly connected, they facilitate the transmission of air from the truck's air system to the trailer, enabling the braking system to engage and ensuring safe operation during transport. This is essential for maintaining control of the vehicle and trailer, especially under demanding driving conditions. The glad hands must be securely fastened and checked for leaks to ensure the integrity of the air supply to the trailer's braking system. Without this connection, the trailer would not be able to brake effectively, posing significant safety risks on the road.