Cleaning - DPI Sekur C607 Serie Manuel D'utilisation Et D'entretien

Replacement of: inhalation gasket (5),
check valves and head harness
Replacement of
exhalation valves (6)
Replacement of the speech module
Check of the thread of the connector
with plug gage
Legenda:
(1) Even in absence of use, unless it has been stored in airtight package.
(2) Only if exposed to heat sources.
(3) The test consists in checking that are not noticed leakages through the mask after donning it,
closing the inhalation inlet with the palm of the hand and building a negative pressure by
attempting to inhale.
(4) The test consists in checking that are not noticed leakages from the mask while keeping breath
after donning it complete of the breathing apparatus with the cylinder valve open and the
demand in breathing mode.
(5) Fix the new gasket with a small amount of Loctite 480 and wait few moments until it dries
before next use. Not for C607 TWIN and C607 SP/A ESA models.
(6) For positive pressure masks replace the complete positive pressure exhalation valve assembly.
(7) Only in case of heavy duty (The year of manufacture is stamped on the speech module).
7.2

Cleaning

The mask must be cleaned every time it is used. Lack of cleaning, besides hygienic
problems, can also jeopardize the correct functioning of the device. Washing can be
performed in a traditional way by dipping in water, or by ultrasonic washing. In both
cases, depending on the need to perform a deep cleaning of the mask due to its
conditions, it can be disassembled and all the components can be cleaned separately.
Washing the speech module and disassembling of the positive pressure assembly is not
recommended. Ultrasonic washing has to be done with SONOREX SUPER RK514BH
equipment or RK1028CH which can be supplied by D.P.I. s.r.l.. Using different equipment
can damage the correct functioning of the masks. Ultrasonic washing temperature must
be set at a temperature not higher than 40°C using a mild detergent (Degreaser cod.
4437.0370) 5% dilution in water. Traditional washing can be performed with tepid water
and a mild detergent (Degreaser cod. 4437.0370) 5% dilution in water. In any case, never
use solvents! After cleaning it thoroughly, rinse under running water and hung up to dry
in open air, avoid in any case exposure to direct solar radiation, or in special cupboards.
During drying pay attention not to expose the mask to direct contact with hot parts or
with hot air (warmer than 45°C) or to direct solar radiation in order to avoid damages to
rubber parts. Check that after cleaning operations no traces of detergent are left
otherwise repeat rinsing and drying. If the mask has been disassembled for washing, a
leak tightness test with test equipment has to be performed. If the mask has been
exposed to chemicals particularly toxic, biological or radioactive agents, maintenance has
to be performed by specialized personnel or by D.P.I. s.r.l. Maintenance and Assistance
Service.
inhalation and
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