MSA Duo-Flo, Инструкция по эксплуатации

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2. Pressure -
a. Constant Flow - Air must be supplied to the inlet end of the air hose under
a pressure between 35-40 psig.
b. Pressure Demand (Ultravue and Ultra Elite Facepieces only) - Air must be sup-
plied to the inlet end of the air hose under a pressure between 65-85 psig.
3. Air Source - The purity of the air supply is the responsibility of the user. The res-
pirator is approved only when the air supplied meets the requirements of
Compressed Gas Association Specification G-7.1 for type I, Class D Gaseous
Air. This requires that the air contain no more than 20 parts per million (ppm)
carbon monoxide, not more than 1000 parts per million (ppm) carbon dioxide,
and not more than 5 milligrams per cubic meter of oil vapor or oil particulates.
CLEANING AND DISINFECTING
The facepiece (with the canister removed) should be cleaned and disinfected after
every use with MSA’s Confidence Plus
® Cleaning Solution (P/N 10009971).
1. Make a solution following the instructions.
2. Immerse soiled equipment in the solution and clean gently with a soft brush until
clean. Take care to clean the exhalation valve in the facepiece and all other parts
that exhaled air contacts.
3. Rinse in plain warm water (maximum 110°F.) and then dry. None of the metal,
plastic, rubber, leather, cloth, or glass parts will be adversely affected by the
cleaning solution.
Cleaning and Disinfecting at or below 110°F will avoid possible overheating
and distortion of parts of the respirator assembly, which would require
replacement.
Instructions for Disassembling and Cleaning the D/PD Valve
1. Remove D/PD valve (Ultravue Facepiece only) by carefully pulling valve from
rubber of facepiece.
2. Remove the three screws from around the outside of the valve. Do not attempt
to remove the screw in the bottom of the valve. Remove plunger assembly and
spring from the body assembly.
3. To clean, follow instructions above.
4. If any parts of the D/PD valve are cracked, torn, or in any way damaged, the
valve must be replaced.
5. For reassembly:
a. Insert spring back into body assembly. Push plunger assembly into the body
assembly and line up the grooves with the holes. Thread the three screws
securely into the assemblies. Turn the D/PD valve between the in and out
positions to see if the valve is functioning.
b. Install D/PD valve into the facepiece so that the groove on the valve is insert-
ed into the exhalation valve hole under the chin cup of the facepiece. Make
sure that the large portion of the valve is on the outside. Align the inside oval
of the valve so that it does not interfere with the inlet assembly or chin cup.
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TAL 7012 (L) Rev. 2 - 818369