KiSS ORCA SPIRIT, Руководство пользователя

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24 MSL 72.161 Jetsam/Orca Spirit manual R.5
a vacuum in the loop. This will cause the BOV to sit higher than usual and the ridges on the hoses to be close together.
If you watch the hoses while you are drawing the gas out of the loop, you will see how they constrict. Also, look at the
counterlung’s. They should be completely flat. Once you close the mouthpiece, watch the hoses and lungs closely.
Don’t look away. You need to notice if anything changes, such as a slight droop in the hoses and/or the mouthpiece
dropping or the lungs shift slightly showing that gas might be going back into them. Leave the loop closed for a few
moments, 60 seconds is adequate, to see if the vacuum holds and then open the loop to let air back in. (Longer is not
necessary and will damage the diaphragm.)
The next most important part of doing your negative test (watching the lungs and hoses is the first) is when you release
the pressure and open the mouthpiece. You should hear a “whoosh” as pressure is released. If you don’t hear this
sound, you have a leak! Or if the “whoosh” isn’t as strong as it usually is, you have a leak. After diving the unit for a
while, you will learn what sound to expect when releasing the pressure. When you hear that sound, you will feel confi‐
dent that you did a good test. If you have any uncertain feeling, then you may have a small leak.
*WARNING ‐ It is important to not leave the vacuum in the loop for more than a few mo‐
ments as this will cause damage to the diaphragm. If this happens, the ADV will not work
properly. It will either stop working altogether or will con nuously feed the diver diluent.
It will certainly allow water to leak into the ADV.
*NOTE: When doing your test, it is VERY important to not suck so hard that you are damag‐
ing the diaphragms. When you do the nega ve test, suck un l you get a good seal, and
then immediately close off the BOV. if you suck so hard that you feel the pressure building
in the back of your throat/neck area, your ears pop, or you feel your face turning red for ex‐
er on, this is way too hard. There is no need for this and it will damage the valves and dia‐
phragms. Suck just un l you feel that pressure, then close the valve.
Our BOV has a larger bore and has an excellent work of breathing. In order to get that good
work of breathing, the valves are more flexible. This means that with this, we need to en‐
sure that we have good tes ng habits. Those divers who learned the tes ng procedures
years ago, have to understand that the equipment has now changed, and that our habits
must also change.
Also ensure that the area where the Mushroom valve seal’s is clean. build up in this area
will cause the diaphragm to leak.
To do the posi ve test, ghten the exhaust valve by turning it fully clockwise. Put the BOV into your mouth, turn the
knob and exhale into the loop un l you hear the exhaust valve release and then quickly close the BOV without le ng
any air escape the loop. The counterlung's should be expanded to their maximum size. Listen carefully for any air
leaks and ensure that the counterlung's remain firm for several minutes. The oxygen tank valve and mouthpiece
should be closed during these tests. A er the test is complete and you open the BOV again you will hear the sound of
the pressure being released. This is important!