To adjust: When diaphragm is above the line, turn adjustingcollar from left to right to increase the reduced pressure - opposite to decrease reduced pressure.
调节：当隔膜位于管道上方时，从左到右旋转调节轴套，以增加减压-相反就是减少减压。
2
When diaphragm is below the horizontal line, turn adjustingcollar from right to left to increase the reduced pressure - opposite to decrease the reduced pressure.
当隔膜位于水平管道下方，则从右到左旋转调节轴套增加减压-相反就是减少减压。
3
The man may do the same thing by touching his neck or adjusting his collar.