Dow Corning
®
and Molykote
®
are registered trademarks of Dow Corning Corporation 3352487 (A3-D-P) Page 2 of 2
Mask function check
1. Isolate the independent air supply (close the valve or disconnect) and
breathe normally to empty the system of air. As the pressure
decreases, the low-pressure whistle (if fitted) will sound. When the
system is empty, the face mask should hold on to the face to indicate
a positive seal.
2. Immediately reapply the independent air supply and breathe normally.
3. Inhale and hold your breath – there should be no audible leak. If a leak
is detected, readjust the head harness and retest.
4. Recommence breathing – exhaled air should flow easily out of the
exhalation valve.
5. Briefly press the front button (Fig 3, Item 3) to check the
supplementary air supply into the mask.
When the function check has been satisfactorily completed, breathe normally
and proceed to the work area.
3.2 During use
WARNING
At very high work rates the pressure in the face mask may become
negative at peak inhalation flow.
● If additional air is required, briefly press and release the front button
(Fig 3, Item 3) to deliver a single jet of supplementary air into the mask.
● When the task is complete or when advised by a controller leave the
hazardous area. Hold and carefully withdraw the airline hose.
Evacuation procedure (independent air supply failure)
WARNING
If the PAS
®
Series apparatus is fitted with a low-pressure whistle, the
whistle sounds during use to indicate that the independent air supply
has fallen below the required pressure.
NOTICE
If the low-pressure whistle sounds and then stops, the air supply
pressure could have been restored. The wearer must confirm that
the correct pressure (6 to 10 bar) is available, or leave the
hazardous area as described below.
If the low-pressure whistle sounds, or if the independent air supply fails,
immediately leave the hazardous area by the shortest and safest route –
remain connected to the independent air supply and carefully withdraw the
airline hose.
When in a safe area, remove the lung demand valve from the face mask if
necessary and continue to breathe normally.
3.3 After use
WARNING
Do not remove the equipment until in safe area, clear of hazard.
CAUTION
Do not drop or throw down equipment as damage could occur.
1. Loosen the face mask straps.
○ Positive-pressure systems: as the seal between the mask and the
face is broken, press the reset button (Fig 3, Item 2) to switch off
the valve.
2. Remove the face mask and fully extend all of the straps of the head
harness.
3. Isolate and disconnect the independent air supply.
4. Press the front button (Fig 3, Item 3) to fully vent the system.
5. Remove the lung demand valve from the face mask (Fig 6 – push-in
coupling shown).
6. Open the waist belt buckle, lift the shoulder strap buckle to loosen the
bandolier harness, and then remove the equipment.
7. Carry out the after use maintenance tasks in the maintenance table
(see Section 5.1).
4 Troubleshooting
The troubleshooting guide shows fault diagnosis and repair information
applicable to breathing apparatus users. Further troubleshooting and
repair information is available in Instructions for Use supplied with
associated equipment (e.g. face mask).
Contact service personnel or Dräger when the remedy information
indicates a service task, or if the symptom remains after all remedy actions
have been attempted.
Symptom Fault Remedy
Air leak or failed leak test Loose or dirty
connector
Disconnect, clean
and reconnect the
couplings and retest
Faulty hose or
component
Substitute user
replaceable
accessories and
retest
Air leak from medium-
pressure hose connection
at the airline manifold
(safety relief valve)
Faulty O-ring, retainer,
spring or pressure
reducer
Service task
Poor sounding whistle Whistle dirty Clean whistle flute
and retest
Whistle not functioning
correctly
Activation mechanism
fault
Service task
5 Maintenance
5.1 Maintenance table
Service and test the breathing apparatus, including out-of-use apparatus,
in accordance with the maintenance table. Record all service details and
testing. Refer also to the Instructions for Use for the lung demand valve,
face mask and other associated equipment.
Additional inspection and testing may be required in the country of use to
ensure compliance with national regulations.
Notes
Dräger recommendations
1. Clean the equipment if it is dirty. If it the equipment has been exposed
to contaminants, disinfect any components that come into direct and
prolonged contact with the skin.
2. These maintenance tasks may only be carried out by Dräger or trained
service personnel. Details of the tests are contained in the Technical
Manual which is issued to service personnel that have attended a
relevant Dräger maintenance course.
3. For type A check the O-ring on the lung demand valve; and for type
ESA check the outer surface of the male part of the push-in connector
on the lung demand valve. As a guide, lubricant should be felt on the
fingers but not seen. If relubrication is required, lightly apply Dow
Corning
®
Molykote
®
111 (other lubricants are not tested and may
damage the equipment).
5.2 Cleaning and disinfecting
CAUTION
Do not exceed 60 °C for drying, and remove components from the
drying facility immediately when dry. Drying time in a heated dryer
must not exceed 30 minutes.
Do not immerse pneumatic or electronic components in cleaning
solutions or water.
If water is trapped and then freezes inside the pneumatic system
of the breathing apparatus (such as the lung demand valve),
operation will be impaired. Prevent any liquid from entering, and
thoroughly dry the breathing apparatus after cleaning to prevent
this from occurring.
For information about suitable cleaning and disinfecting agents
and their specifications refer to document 9100081 on
www.draeger.com/IFU.
Refer to the Instructions for Use for the lung demand valve, face mask and
other associated equipment.
● Use only clean lint-free cloths
1. Clean the breathing apparatus manually using a cloth moistened with
cleaning solution to remove excess dirt.
2. Apply disinfecting solution to all internal and external surfaces.
3. Rinse all components thoroughly with clean water to remove all
cleaning and disinfecting agents.
4. Dry all components using a dry cloth, in a heated dryer or in air.
5. Contact service personnel or Dräger if disassembly of pneumatic or
electronic components is required.
6 Storage
6.1 Storage preparation
● Extend the shoulder straps, waist belt and the straps of the face mask.
● For storage, place the face mask in a protective bag (contact Dräger
for supply of a suitable bag).
● Route rubber hoses in such a way that the bend radius is not too acute
and the hose is not stretched, compressed or twisted.
6.2 Storage conditions
● Store the equipment between -15 °C and +25 °C. Ensure that the
environment is dry, free from dust and dirt, and does not subject the
equipment to wear or damage due to abrasion. Do not store the
equipment in direct sunlight.
● Fix the breathing apparatus securely to any raised mounting point to
prevent it from falling.
7 Disposal
When required, dispose of the PAS
®
Series in accordance with national or
local regulations for waste disposal.
8 Technical data
● Independent air supply (single user):
○ Airline pressure and flow requirements: pressure 6 to 10 bar, air
flow rate at least 550 litres/minute. Important note: do not exceed
10 bar.
○ Airline hose requirements: maximum of 100 m of Dräger approved
hose. Important note: no more than four individual hoses
(a maximum of five hose connections) are permitted in the airline.
● Low-pressure whistle operation:
○ Whistle commences in the range: 5 to 4 bar.
○ Whistle ceases in the range: 1.75 to 0 bar.
○ Whistle volume: >90 dBA.
Component/
System
Task Before
use
After
use
Every
month
Every
year
Complete
equipment
Visual inspection (see Note 1 and
Section 3.1.1)
Functional test (see Section 3.1.2)
Breathing cycle and static
tests (see Note 2)
Lung demand
valve
Check push-in type connectors for
lubricant (see Note 3)
To Previous Page
Loading...
