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Figure 3-11 Expiratory valve installation view
2) Pull the lock plate to the right side to lock the expiratory valve.
3) Install the expiratory valve cover onto the left of the panel by your left hand, and
unlock the cover lock according to the direction of the silk-screen simultaneously, and
press the cover, and push the cover lock to lock.
Figure 3-12 Expiratory valve cover installation view
2. Disassembling:
1) Push the cover lock to unlock according to the direction of the silk-screen, and take
out the expiratory valve cover.
Figure 3-13 Expiratory valve cover disassembly view
2) Pull the lock plate to the left side by your left hand to unlock, and pull out the
expiratory valve forcefully.