8
WARNING
Cylinders do not feature any reserve indicator. It is therefore nec-
essary to use an underwater pressure gauge connected with
the I Stage to keep track of air consumption when diving. The
pressure gauge must signal the minimum pressure of 50 bar
with a contrasting colour. This air reserve has to be used only in
an emergency.
Diving without a pressure gauge is very dangerous. If you are not
aware of air consumption you can suddenly run out of air and
jeopardize your life.
To test the regulator press the air flow button with your finger
repeatedly. Then hold the mouthpiece between your teeth and
breathe in and out deeply to test the exhaust valves too.
Test the octopus - the additional II Stage connected to the same
I Stage - in the same way. Test the BC inflator system by press-
ing the inflating button and checking the exhaust valves.
Hear for air leaks from connections and hoses. Make sure regu-
lators do not free-flow. In case of any malfunction overhaul the
regulator and replace faulty parts.
NOTE
Once assembled the scuba equipment must be laid horizontally
to prevent any accidental fall from damaging the components or
hurting people.
HOW TO WEAR THE SCUBA EQUIPMENT
You can wear the scuba equipment both on land and in water.
Proper instructions are taught at diving courses.
BC’s (jackets) feature harnesses to hold the scuba equipment
and a cummerband to secure it around the waist.
Back-pack feature two adjustable straps to hold the scuba on the
shoulders and one strap to hold it tight around the waist. One fur-
ther fork-like strap under the diver’s groin keeps the scuba from
moving upwards and hampering the diver’s head movements.
Before using diving equipment it is necessary to complete a spe-
cific training course and get a diving licence.
In the presence of the following conditions diving should not be
attempted: rough sea, strong currents, too low water tempera-
ture, low visibility, poor health, lack of training, fatigue or bad
digestion.
Note that after a long time of inactivity a diver tends to forget the
automatism and techniques learnt at the course and diving
becomes more risky.
Cressi-sub scuba equipment is made with top quality corrosion-
resistant materials and is certified for use down to a depth of 50
m (UNI EN 250). The limit for sport diving is set at 40 m.
MAINTENANCE AND STORAGE
Rinse cressi-sub scuba equipment with fresh water after each
dive. Use air under pressure from the cylinder to remove all
water remains from the hoses.
All valves must be checked on an annual basis by an
authorized Cress-sub repair workshop to remove cor-
rosion build-ups. O-rings must be replaced and tap stems lubri-
cated with appropriate grease. If the valve seat is considerably
worn, replace it. Do not overtighten tap handwheels in order not
to damage retaining seats and stems.
If valves are replaced, carefully check that the
stem/cylinder coupling M 25 x 2 threads are per-
fectly matching. Do not ever force valves when
screwing.
Cressi-sub assumes no responsibility for any
work carried out by personnel not authorized by
Cressi-sub.
All cylinders must be revised annually by an author-
ized Cressi-sub repair workshop to check the condition
of the inside walls. All traces of corrosion caused by salt water,
which may accidentally have flown into the bottle, must be
eliminated. If necessary the cylinder must be tested again even
if the validity of the certificate has not expired yet.
Rubinetteria 27-09-2005 15:09 Pagina 8
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