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Idiomas disponibles
Idiomas disponibles
The frequency of disinfection and cleaning of other parts of the device depends of the kind of toxics they have been
in contact with and of the level of contamination. Clean the components of SCBA with warm and soapy water,
scrub hard and rinse abundantly, finally air dry. Never use dry cloths to clean the backplate or other parts that could
potentially charge by rubbing and become ignition sources in potentially explosive atmospheres (see par. 8 for ATEX
devices). Please contact SPSCIANI for any clarifying.
4.2. Cylinders
Follow the existing laws and regulations of the countries where the types of cylinders are used to fill and retest them.
When filling the cylinder, you can exceed the maximum operating pressure by about 10% since, at room temperature,
the pressure will drop back to the nominal value.
When filling, make sure:
the air complies with the EN 12021 standard.
•
the cylinder was checked within the time limits established; this can be done by checking the date of the last retesting
•
on the label.
The valve of the cylinder must be kept closed during transport to prevent humidity from penetrating and condensing.
During transport and storage, the cylinders must be protected from shock.
Do not grasp the valve to transport the cylinders.
4.3. Scheduled maintenance
The following table reports the scheduled maintenance operations:
Table 2 - Scheduled maintenance
Part
Complete device
Demand valve
High pressure connector
Seal of the high pressure connection
Reducer
Cylinder
1: Before allowing the use - 2: Before use - 3: After use - 4: Every six months - 5: Yearly - 6: Every three years - 7: Every six years
a) After use in corrosive environments or under extreme environmental conditions b) According to the national laws
c) ATTENTION: Every time you disassemble the valve of the cylinder, you must replace it with a new one. Refer to the instruction
manual of the cylinder and valve for the proper torque values. After replacing any part, you must carry out all the operating and
pneumatic tightness checks.
4.4. Checks
Warning: the following checks must absolutely be carried out after cleaning or replacing the components.
The membrane of the demand valve, like all rubber parts, must be replaced if they show signs of alterations or
deterioration such as cracks, sticky parts, deformations, etc. All the connections must slide well without being hindered
and they must not show any signs of damage.
Some of the following tests can be carried out by means of special tools SPASCIANI can provide upon request.
4.4.1. Demand valve tightness at +7 mbar pressure
•
Connect the cylinder to the reducer; the cylinder must be left closed
•
Connect the demand valve to the medium pressure hose
•
Unlock the lock button (pos. 1) by pressing on the button in the middle of the cover
•
Connect the demand valve to the testing equipment
Create a pressure of about 7 mbar in the demand valve
•
The pressure drop should not exceed 1 mbar per minute.
4.4.2. Positive pressure of the demand valve
•
Open the cylinder valve
•
Connect the demand valve to the testing equipment
Activities
Cleaning
Operations, seals
Check the back support
Cleaning
Disinfection
Membrane test
Replacement of the membrane
Thread test (gauge)
Replacement
Revision
c
Retesting
RN MINI
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6
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