MSA
USING THE COMPRESSED AIR BREATHING APPARATUS
AirMaXX classic
23
(5) Adjust shoulder straps to achieve a comfortable weight distribution between
shoulder straps and hip belt.
(6) If required, connect lung governed demand valve to medium pressure
coupling (
Instruction Manual for Lung Governed Demand Valve).
3.7. Donning the Full-Face Mask
(1) Don full face mask and check mask-to-face fit (palm test) (see Instruction
Manual of Full Face Mask).
(2) Open cylinder valve(s)
fully
.
Warning!
When using two compressed air cylinders, always open the valves of
both cylinders. Only then will both cylinders empty uniformly.
(3) Connect lung governed demand valve to full face mask (see Instruction
Manual for Lung Governed Demand Valve)
(4) The compressed air breathing apparatus is ready for use.
3.8. During Use
(1) Regularly check tight fit of full mask and lung governed demand valve and
retighten if necessary, as well as the air supply on the pressure gauge.
(2) Leave area immediately if the warning signal sounds.
Independently of the warning signal, an earlier retreat may be required;
the retreat start is based on the reading of the pressure gauge.
Danger!
The warning signal sounds when the air supply in the compressed air
cylinders is reduced.
In such cases, immediately leave the area, there is danger of air
deficiency.
3.9. Using the Second Connection
(1) Remove safety cap from medium pressure coupling of Second Connection
on the pressure gauge.
(2) Connect medium pressure line of lung governed demand valve of second
user until the coupling audibly catches.
Warning!
When rescuing persons with the rescue set via the Second
Connection, more air is consumed.
Hence, the service time is considerably reduced. Always keep this in
mind when using your apparatus.