smaco S400 Plus, User Manual

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OPERATION TUTORIAL
04
4.3 Pressure Release
Press the release valve on the top of the secondary breathing valve to release
the pressure. If air leakage occurs after air filling, release the pressure in this
way and check the malfunction.
How to Use
Before use, please check any possible air leakage or water seeping into the
breathing cavity of the secondary breathing valve. In case of air leakage, stop
using it immediately. In case of water seepage, please drain the water before
use. The specific operation is shown as follows:
Keep all the mouthpiece in mouth and bite the silicon part with teeth, blow 2-3
times into the cylinder valve to ensure the water in the cavity of the secondary
breathing valve has been fully discharged, and then have normal breathing with
the mouth;
Keep all the mouthpiece in mouth, bite the silicone part with teeth and shut the
mouth tightly. Press the pressure release valve of the secondary breathing valve
to discharge the water in the cavity of the secondary breathing valve by the
released air, and then have normal breathing with the mouth;
Use only after safety hazards have been eliminated. When in use, you can breathe
normally by biting the mouthpiece completely;
Check whether there are foreign objects (such as sand, etc.) in the cavity of the
secondary breathing valve. If any, please clean up in time before use.
4.4
06