How does Trendelenburg operate on my Hill-Rom® Stretcher?

How does Trendelenburg operate on my Hill-Rom® Stretcher?
 

The Trendelenburg and Reverse Trendelenburg pedals are located at each side of the stretcher. The maximum angle for Trendelenburg and Reverse Trendelenburg is 18⁰. To operate: 

1. Make sure the stretcher is in the high position. 

2. Press and hold the Trendelenburg pedal until the stretcher is at the applicable angle.