Manual Tusa RS-860 (page 27 of 96) (English, German, Dutch, French, Italian, Portuguese, Spanish)

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Regulators

9. Check the tank/regulator connection for leakage. If leakage exists, it may be caused

by incorrect mounting of the regulator on the tank valve, or by a damaged O-ring in

the tank valve.

10. To confirm that the regulator delivers air properly, first exhale through the

mouthpiece to blow any foreign matter out of the second stage, then inhale. A few

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 the

second stage through the mouthpiece.

12. When the second stage is not in your mouth, uncontrolled air delivery can take

place. This can be stopped by turning the second stage upside down and allowing

it to fill with water. Should the air delivery continue, abort the dive and have the

regulator inspected by a TUSA Authori

zed Service Center.

SECTION IV

AFTER DIVE PROCEDURES

Providing the best possible preventative and routine maintenance before, after, and

between dives will help to ensure the maximum life of your TUSA Regulator. To achieve

this goal, there are a number of simple, yet important, routine maintenance procedures

that should be followed by the diver after each use of the equipment. The following

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 for

the next use, or for storage. As soon as the regulator is removed from the air

cylinder, reinstall the dust cap over the regulator inlet port. This cap is

normally

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-ring,

if fitted, is in place inside the dust cap.

2. As soon as possible after diving, the regulator should be soaked in warm, not over

50°C (122°F) water to remove salt and mineral deposits.The preferred method is to

attach the regulator to a charged air cylinder, open the cylinder valve, and

thoroughly soak both the first and second stage regulators . Pay particular attention

to directing water into the mainspring cavity of the first stage regulator, the second

stage mouthpiece, and the holes in the second stage cover. Depress the purge

button several times while the regulator is submerged in water. Dry the regulator by

pressing on the purge button with the mouthpiece pointing down.Place the dust cap

in position in the yoke, or over

the DIN screw.

19 20

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 w

ater

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.

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Tusa RS-860 Manual

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