Labeling & Packaging

Service & Repair Manual

▼Set the O-rings aside on a perfectly clean surface that is covered with cellophane. Do not use lubricant that appears to be contaminated with any particulate matter or other foreign debris.

CAUTION: The use of aerosol spray or petroleum based lubricants must be strictly avoided. The propellant gas or petroleum base may attack or weaken plastic or rubber parts, and is not compatible with enriched air.

Final Adjustment & Flow Testing

When the equipment has been cleaned and reassembled, it is very important to avoid contact with standard compressed air, to prevent any possibility of hydrocarbon contamination. It is therefore extremely impor- tant to pressurize only with hydrocarbon-free gas for the purposes of final adjustment and flow testing. As a less expensive alternative to EAN, com- pressed Nitrogen may be used, purchased from a reputable gas supplier that can certify the gas as being hydrocarbon-free.

CAUTION: Do not connect the regulator to any cylinder or air supply that cannot be verified as containing hydrocarbon-free gas. If the regulator is pressurized with standard compressed air, which contains hydrocarbons, it will be rendered incompatible with enriched air mixtures above 23.5 percent oxygen until the above cleaning procedure has been repeated.

After performing the EAN/ Nitrox cleaning and service procedures, it is extremely important to ensure that each piece of equipment serviced is clearly labeled and identified for dedicated use with EAN/ Nitrox. This will help to prevent any crossover use with normal compressed air, and will also help to prevent any accidental use by untrained users.

▼After completing the cleaning procedures, proceed to

Section 5 – Reassembly

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