DURING THE DIVE
When the regulator is not held in your
mouth, air self-delivery may occur. Rotat-
ing the regulator upside down while
checking that the same has been previous-
ly filled with water may easily eliminate
this inconvenience.
The use of suitable containers for mouth-
piece protection will prevent such incon-
venience and will also provide a cover for
the passage inside the second stage, thus
removing the risks of sand or dirt contam-
ination.
Verify that the DIVE/PRE-DIVE regulation
on the SYNCHRO second stage is set to ful-
ly guarantee the necessary airflow.
AFTER EACH DIVE
AND PERIODIC MAINTENANCE
Your regulator is made of very high-quality
materials and has undergone exhaustive sea-
water. However, every precaution shall be
taken in order to protect the product equip-
ment from the corrosive action of salt.
Below is the procedure to be followed after
surfacing or on board at the end of the dive.
The first operation to be carried out after the
dive is to disassemble the equipment used.
Close the valve by turning it clockwise;
once fully closed discharge all the residual
air remaining in the regulator system by
actuating the second stage purge button.
This operation may require several sec-
onds, as the air leaving the pressure gauge
through the first stage shall pass through a
0.20 diameter. hole.
Unscrew the knob positioned on the yoke
or, in case of Thread connection system,
unscrew the threaded ring nut.
Lay the cylinder down to prevent it from
falling, positioning it in such a way that it
cannot roll in any direction.
Thoroughly clean and dry the first stage
filter and housing with a cloth or with a
soft compressed-air jet.
Repeat the same operation on the protec-
tion cap covering the filter.
Place the protection cap onto the filter
and fasten it by tightening the handle, or
in case of thread connection, screw up the
swivel-screw cap.
Rinse but do not immerse the regulator in
running fresh water taking care of with all
parts.
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In this phase do not for any reason remove
the first stage filter protection cap. During
this operation be extremely careful not to
press on the diaphragm, to avoid water
entering into the first and second stage.
If you are not using the regulator for some
weeks, again connect the regulator to a cylin-
der and, by depressing the second stage
purge button to cause continuous air delivery
for about ten seconds. In this way all the wa-
ter is discharged and there is no risk of scale
deposits or undesirable taste.
The regulator shall be put to dry in a place
sheltered from the sun and dust, hanging
from the first stage yoke, so that the hose is
not bent.
At the end of a particularly intensive diving pe-
riod or, in any case, after a long term of inac-
tivity, it is advisable to have a complete over-
haul carried out at an approved Seacsub
service centre. Consequently, we advise you to
contact your dealer who will advise further in-
formation on the quickest and safest way of
servicing your regulator.
DIVING IN COLD WATER
Incorrect preparation for cold water diving
(less than +10 degrees centigrade) may cause
serious damage.
Before diving in cold water, you should follow
specific training under the supervision of spe-
cialized and qualified trainers in cold-water
diving techniques.
You must use specific regulators certified for
such conditions and closely follow the instruc-
tions contained in the relevant handbooks.
Though the risks of freezing are limited as far
as possible by continuous research, it is not
possible to prevent a second stage freezing in
the most extreme conditions.
This could be the case when the water tem-
perature is below +4 degrees centigrade and
with external air temperatures is below zero).
Consequently, in order to prevent or reduce
any possible risks, adequate training is need-
ed to prevent the regulator from freezing.
In extreme conditions you should strictly ob-
serve the following guidelines: