Turn the adjusting knob clockwise and establish the required use pressure by referring to the low-pressuregauge. Make sure that the cylinder valve is easily accessible.
顺时针旋转调整钮，通过查看低压量表建立要求的使用压力。确认钢瓶阀门容易接近。
2
When the high-pressuregauge indicates maximum pressure, open the cylinder valve fully.
当高压量表指示为最大压力时，彻底打开钢瓶阀门。
3
Main structured items are: JDQM full face mask, air supply valve, pressure regulator valve, backboard, pressuregauge, alarming whistle, medium pressure tube, carbon fiber composite cylinder, etc.