Putting on the full-face mask
NOTICE
The sealing line between head and full-face mask must be free from hairs
and foreign objects, as these can cause leaks. Wearers of spectacles
should use a spectacle kit.
1)
Fit spectacle kit if required
.
Open the head harness as far as it will go.
NOTICE
At extremely low temperatures the wearer should be holding his/her
breath briefly when putting on the mask. This will prevent the full-face
mask from steaming up.
Loosen full-face mask from the ready position.
Spread the harness and place
your chin in the chin trough.
Pull the head harness over the
head and pull backwards.
Adjust the full-face mask to fit.
Uniformly tighten the neck har-
ness, then the temple harness
and, finally, the front strap.
Testing for leaks
NOTICE
When using pad-particle filters carry out the positive pressure test only
as the pad cap does not provide an airtight seal for the gas filter and/or
the pad plate.
Negative pressure test
Seal off both respiratory filters
using your hands or a suitable
object (e.g., a fairly even piece of
cardboard) and breathe in to
achieve a negative vacuum. Hold
your breath for a moment.
The negative pressure should be
maintained. If this is not the
case, tighten the straps.
Positive pressure test
Seal off the exhalation valve of
the full-face mask and breathe
out fully. The full-face mask must
not lift off the face. If breathing
air flows out via the face seal,
tighten the harness.
Only enter the contaminated area if the full face mask is free from leaks
and the appropriate respiratory filters are fitted.
If the function of the mask is reduced by effects specific to the contami-
nated area, leave the contaminated area immediately.
Extreme operating conditions
At low temperatures: Protect lens from the inside with anti-misting gel
2)
"klar-pilot"
.
At high temperatures: If the lens is damaged, leave the hazardous
environment immediately.
In areas prone to explosion: Treat full-face mask and respiratory filter with
anti-static spray.
1) Note the assembly instructions.
2) Follow the separate instructions for use of the product.
6
WARNING
After use
Remove both respiratory filters and discard
Remove the full face mask: Place
the index fingers behind the
shackles of the neck straps,
push the clamping buckles for-
ward with the thumbs and at the
same time pull the full face mask
away from the face over the
head. Do not pull at the breathing
connection during this proce-
dure.
Cleaning, Disinfection and Drying
Clean and disinfect the full-face mask after every use.
Excessive dosage and prolonged exposure may cause damage to the
full-face mask.
Do not use solvents such as acetone, alcohol, etc. for cleaning. Only use
the approved cleaning and disinfecting agents specified below.
Clean the full-face mask with water containing the all-purpose detergent
2)
Sekusept Cleaner
(0.5 - 1.0 % solution) and a cloth, the cleaner must be
rinsed off completely with running water immediately after cleaning.
Place the full-face mask in a disinfectant bath for 15 min., using Incidur
disinfectant (2% solution), the disinfectant must be rinsed off completely
with running water immediately after disinfecting.
Dry fully in drying cabinet or air dry. Temperature max. 60
expose the mask to direct sunlight.
Mechanical cleaning and disinfection with Eltra
Instructions for Use 90 21 380.
Leak tests
The full-face mask must be tested whenever it has been used and after any
maintenance or repair work.
Test equipment and accessories: Dräger Testor 2100,
2 x bayonet catches (AG 02 460), exhalation valve plug (R 53 349).
(1) Testing for leaks
Moisten face seal and exhalation valve with water.
Fit the full-face mask to the test head.
Make sure that the face seal is in full contact with the test head. Inflate
test head if required.
Seal connectors with bayonet plugs and generate 10 mbar negative
pressure.
The full-face mask is considered to be air-tight if the pressure does not
drop by more than 1 mbar/min. If the full-face mask is not air-tight, proceed
with step (2).
(2) Testing with sealed exhalation valve
Remove the exhalation valve disc.
Insert the test plug of the exhalation valve until it engages.
Generate a negative pressure of 10 mbar.
If the pressure drops by less than 1 mbar/min, remove exhalation valve
test plug and insert new valve disc.
Repeat the leak test (1). If the full-face mask is not air-tight, proceed with
step (3).
(3) Leak test under water
Immerse test head including full-face mask with exhalation valve test plug
into water.
Generate an excess pressure of approx. 10 mbar.
Rotate the test head slowly below the water surface. Escaping air
bubbles will indicate the source of the leak.
Remove the test head with full-face mask from the water, repair full-face
mask and replace leaking components.
Remove exhalation valve test plug and install exhalation valve.
Repeat the leak test (1).
After testing
Remove bayonet catches.
Remove full-face mask from the test head and dry if required.
Replace protective cap and ensure that it engages.
1)
.
CAUTION
o
C. Do not
®
in accordance with
2)