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Tusa RS-340 Manual

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Regulators
9. Check the tank/regulator connection for leakage. If leakage exists, it may be cause
d
by incorrect mounting of the regulator on the tank valve, or by a damaged O-ring i
n
the tank valve.
10. To confirm that the regulator delivers air properly, first exhale through th
e
mouthpiece to blow any foreign matter out of the second stage, then inhale. A fe
w
of these breathing cycles should immediately indicate proper function.
11. If you are using the second stage as an Octopus regulator, it is strongly recom
-
mended to utilize an Octopus plug to prevent any foreign matter from entering th
e
second stage through the mouthpiece.
12. When the second stage is not in your mouth, uncontrolled air delivery can tak
e
place. This can be stopped by turning the second stage upside down and allowin
g
it to fill with water. Should the air delivery continue, abort the dive and have th
e
regulator inspected by a TUSA Authori
zed Service Center.
SECTION IV
AFTER DIVE PROCEDURES
Providing the best possible preventative and routine maintenance before, after, an
d
between dives will help to ensure the maximum life of your TUSA Regulator. To achiev
e
this goal, there are a number of simple, yet important, routine maintenance procedure
s
that should be followed by the diver after each use of the equipment. The follo
wing
procedures should be diligently followed in order to obtain the maximum life
and
serviceability from your regulator.
1. After each day of diving, the regulator must be cleaned, inspected, and prepared f
or
the next use, or for storage. As soon as the regulator is removed from the ai
r
cylinder, reinstall the dust cap over the regulator inlet port. This cap is normall
y
attached to the First Stage and therefore has been under water. Be sure to dry
all
the water out of this cap before securing it over the inlet port. Ensure that the O-r
ing,
if fitted, is in place inside the dust cap.
2. As soon as possible after diving, the regulator should be soaked in warm, not ove
r
50°C (122°F) water to remove salt and mineral deposits.The preferred method is t
o
attach the regulator to a charged air cylinder, open the cylinder valve, an
d
thoroughly soak both the first and second stage regulators . Pay particular attentio
n
to directing water into the mainspring cavity of the first stage regulator, the secon
d
stage mouthpiece, and the holes in the second stage cover. Depress the purg
e
button several times while the regulator is submerged in water. Dry the regulator b
y
pressing on the purge button with the mouthpiece pointing down.Place the dust ca
p
in position in the yoke, or over
the DIN screw.
19 20
Regulators
GB
Regulators
SECTION V
CONTAMINATED WATER DIVING
Sophisticated diving gear designed for use in contaminated water provides constant
positive pressure inside the regulator case and utilizes redundant exhaust valve
passages. TUSA regulators are not designed to provide this requirement and therefore
are not recommended for use in contaminated water diving.
SECTION VI
RS-350/340/680/790 DRY USE IN
COLD WATER DIVING
This is important information. Be sure to read it.
WARNING:
RS-350/340/680/790DRY regulators for the European market have passed the cold water
performance test (water temperature: 4°C) specified by EN250.
Soaking regulator parts in warm water will remove more salt and mineral deposits
than will conventional rinsing. It will loosen deposits on interior components that
rinsing will not (If no charged air cylinder is available, follow the above procedure but
be very careful NOT to depress the purge button, or leave dust cap off, when the
regulator is submerged in water. Failure to do
this will allow water to enter both
regulator stages and may result in internal corrosion).
Simply soak the entire exterior of the first stage thoroughly, and proceed as above
when cleaning the second stage.
3. Store in a clean equipment box, or as an alternative, seal inside a plastic bag. Store
in a clean dry place.
4. Lightly lubricate the yoke screw with silicone grease.
5. Never store the regulator while it is still connected to the diving cylinder.
6. Do not use any type of solvent to clean any part of the regulator. Do not expose any
part of the regulator to silicone spray, as some aerosol propellants attack or degrade
rubber and plastic material.
7. Do not carry the diving cylinder by the regulator as such abuse will eventually
damage the regulator or the cylinder valve. Do not expose the regulator to
unnecessary shocks or impact.
… 26 …


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