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Issue date: 17 November 2006
45 of 80
LFB image 250386
LFB image 245538
LFB image 245558
‘B’ test: cleaning the face mask
20.3
Clean the face mask bag in Safetywash solution as per 20.4,
inspect
and dry. Disconnect the face mask from the LDV.
20.4
Remove the face mask from the LDV by pressing both red
buttons at the side of the LDV and pulling slightly to
disconnect (see image 250386 right).To clean the FPS 7000
face mask:
Prepare 0.5-1.0% solution of Safetywash. This measurement
equates to two full squirts from the pump-action dispenser
into 10 litres of lukewarm water. Max 30
0
C (measuring bucket available on POMS
V2043 BUCKET, BLACK PLASTIC, 14 LITRE - NOT FOR USE ON APPLIANCE).
Note:
do not immerse the LDV in solution as this may cause the LDV not to function correctly
(see LDV cleaning instructions).
20.5
The whole face mask must be completely immersed in the recommended solution of Safetywash.
The face mask should be cleaned using a lint free cloth (Wypall x80) soaked in Safetywash
solution paying particular attention to the folds of the reflex seal. The face mask should then be
immersed in the solution for 15 minutes and then removed. The face mask must then be rinsed in
clean,
running
water.
The face mask can be damaged by using higher dosages of cleaning
solution and or applying them for a longer period of time than stated above.
20.6
After washing, the face mask should be shaken to remove excess water. Dry using a lint free cloth
paying particular attention to the folds of the reflex seal and bottom of the mask where residual
water gathers. A damp PALTECH wipe must be used to disinfect the face mask following
cleaning.
No other means of drying or cleaning must be used
.
Removing the inner mask
20.7
The inner mask should not be removed as a routine action.
20.8
If it is necessary to remove the inner mask, take hold of the inner
mask at the tip of the nose then gently remove the mask off the
locating pin and out of the connection piece groove. To avoid
damage care should be taken to ensure that the lower portion of
the inner mask is clear of the groove before removal.
Replacing the inner mask
Caution:
during the cleaning process care must be taken to
ensure that the two inner mask non-return valves within the inner
mask are not dislodged or removed, ensure that they are seated
correctly (as arrowed in image 245538 right)
20.9
Put the inner mask onto the locating pin, and then press it into the
connection piece groove around the speech diaphragm (as circled
in image 245538 right).
20.10
Check the face mask port and seating ring are clean and
undamaged -
do not remove
(as arrowed in image 245558
right).
