PSS
®
4000 Series
Self-contained breathing apparatus
Instructions for Use
i
PSS
®
is a registered trademark of Dräger
3363923 (A3-D-P) Page 1 of 3
3363923
© Dräger Safety UK Limited
Edition 08 – July 2018 (Edition 01 – March 2015)
Subject to alteration
Draeger Safety UK Limited
Ullswater Close
Tel +44 1670 352 891
Blyth, NE24 4RG
Fax +44 1670 356 266
United Kingdom
www.draeger.com
1
For your safety
1.1
General safety statements
●
Before using this product, carefully read the Instructions for Use.
●
Strictly follow the Instructions for Use. The user must fully understand
and strictly observe the instructions.
●
Use the product only for the purposes specified in the Intended Use
section of this document.
●
Do not dispose of the Instructions for Use. Ensure that they are
retained and appropriately used by the product user.
●
Only fully trained and competent users are permitted to use this
product.
●
Comply with all local and national rules and regulations associated
with this product.
●
Only trained and competent personnel are permitted to inspect, repair
and service the product. Dräger recommend a Dräger service contract
for all maintenance activities and that all repairs are carried out by
Dräger.
●
Properly trained service personnel must inspect and service this
product as detailed in the Maintenance section of this document.
●
Use only genuine Dräger spare parts and accessories, or the proper
functioning of the product may be impaired.
●
Do not use a faulty or incomplete product, and do not modify the
product.
●
Notify Dräger in the event of any component fault or failure.
●
The air supply shall meet the requirements for breathing air according
to EN12021.
1.2
Definitions of alert icons
Alert icons are used in this document to provide and highlight text that
requires a greater awareness by the user. A definition of the meaning of
each icon is as follows:
WARNING
Indicates a potentially hazardous situation which, if not avoided,
could result in death or serious injury.
CAUTION
Indicates a potentially hazardous situation which, if not avoided,
could result in physical injury or damage to the product or
environment. It may also be used to alert against unsafe practices.
NOTICE
Indicates additional information on how to use the product.
2
Description
2.1
Product overview
The Dräger PSS
®
4000 Series is a self-contained breathing apparatus
(SCBA) that uses an open-circuit breathing system. The series is
compatible with a wide range of compressed-air cylinders, face masks and
lung demand valves (e.g. FPS 7000 and Panorama Nova face masks, PSS
Series lung demand valves, and steel or composite cylinders).
2.2
Feature description
The carrying system uses a lightweight polymer-composite space
frame (2). The shoulder straps and waist belt are fully adjustable and use
webbing harness straps and moulded padding on the shoulder pads and
waist pad.
The apparatus uses the Dräger high-performance pressure reducer (7)
that reduces cylinder pressure and supplies breathing air through a
medium-pressure hose (6) and coupling (1) to the attached lung demand
valve. The apparatus is fitted with a mechanical pressure gauge (4) that
incorporates a whistle that sounds to warn the wearer that there is low
cylinder pressure. A dual-pressure hose (5) supplies air to the whistle
when it is activated, and has an internal capillary tube that supplies high-
pressure air from the cylinder to the gauge.
The air hoses and the pressure reducer are integrated into the space frame
to prevent snagging and enhance component protection. The hose
clips (3) hold the air hoses in position on the shoulder straps.
Air cylinders, lung demand valves and face masks
The Dräger PSS
®
4000 is compatible with a single steel or composite
material cylinder of 4 to 9 litre capacity, and 200 or 300 bar pressure. Full
descriptions and user instructions are contained in separate instructions
supplied with the cylinder, mask or lung demand valve.
2.2.1
Twin cylinder configuration
When used with a twin cylinder upgrade kit, the PSS
®
4000 is compatible
with:
●
Twin steel cylinders of 4 litre capacity, 200 pressure, with a Y-piece
connector (part number 3339615).
●
Twin composite material cylinders of 6 to 6.8 litre capacity, 300 bar
pressure, with a T-piece connector (part number 3337660 or 3361996)
Use of twin steel cylinders with the Y-piece requires replacement of the
standard hand wheel with the slim hand wheel 3357005. Contact Dräger
for details.
2.3
Intended use
The PSS
®
4000 breathing apparatus, when fitted with a cylinder, lung
demand valve and face mask, is intended for use by emergency services
and in industrial applications where a high level of respiratory protection is
required. The assembled breathing apparatus provides the wearer with
respiratory protection for working in contaminated or oxygen-deficient
conditions, and is suitable for fire fighting.
The cylinder, lung demand valve, face mask and other accessories used
with this product must be certified Dräger components, assembled in an
approved configuration. Contact Dräger for further information.
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Use in potentially explosive atmospheres
Electronic sub-assemblies are ATEX certified.
2.4
Approvals
The European standards, guidelines, and directives according to which
this product is approved are specified in the declaration of conformity (see
declaration of conformity or www.draeger.com/product-certificates).
2.5
Explanation of marking and symbols
Refer to the relevant authority for explanation of approval body symbols
and marking on the equipment. Examples of other marking on component
parts of the breathing apparatus are:
BRAC-1359
–
Dräger serial number
08/09
–
Month and year of manufacture
3356812 or R21034
–
Dräger part number
SF
–
Standard force coupling
LF
–
Low force coupling
3
Use
WARNING
Only trained and competent personnel may prepare and use
breathing apparatus. Ensure that any accessories, ancillary
equipment and other protective clothing items do not interfere with
the apparatus and do not create a safety hazard.
The effective working duration of the apparatus is dependent on
the initial air supply available and the breathing rate of the wearer.
Fill air cylinders to their full rated pressure prior to use, and do not
commence any operation using a cylinder that is less than 90 per
cent full (or greater when national regulations dictate).
CAUTION
Do not apply excessive force or use tools to open or close a
cylinder valve, and do not drop or throw down the breathing
apparatus.
NOTICE
When fitted with twin cylinders, the breathing apparatus might
exceed the weight limit specified in EN 137:2006.
3.1
Preparation for use
NOTICE
The face of the pressure gauge may be fitted with a thin flexible
protective covering. Remove this covering before first use.
1. Carry out a visual inspection of the breathing apparatus (see
2. Fit the air cylinder (see Section 3.5.2).
3. For breathing apparatus with a medium-pressure coupling for the lung
demand valve, disconnect and then reconnect the male coupling. To
connect, press the male coupling into the female coupling until an
audible click is heard. If there is any difficulty disconnecting or
connecting, see the troubleshooting information in Section 4.
4. Press the reset button when using a positive-pressure lung demand
valve (see the Instructions for Use supplied with the lung demand
valve).
5. Carry out a full functional test of the apparatus (see Section 3.5.3).
6. Connect the lung demand valve to the face mask and check the
security of attachment by gently attempting to pull the coupling apart.
3.2
Putting on the breathing apparatus
1. Fully loosen the shoulder straps and waist belt and put on the
breathing apparatus.
2. Check that the shoulder pads are not twisted and take the weight of the
system on the shoulders by pulling the shoulder straps. Do not fully
tighten at this stage.
3. Close the waist belt buckle and pull the ends of the waist belt forward
until the strap padding fits securely and comfortably over the
hips (Fig B). Tuck the belt ends behind the waist pad or belt.
4. Pull the shoulder straps until the breathing apparatus rests securely
and comfortably on the hips. Do not over tighten. Pull the strap
retainers down to secure the strap ends (Fig C).
5. Fully loosen the head straps of the face mask and place the neck strap
over the back of the neck.
6. Press the reset button when using a positive-pressure lung demand
valve.
7. Open the cylinder valve slowly, but fully, to pressurize the system (if
two cylinders are fitted, fully open both cylinder valves).
8. Put on the face mask and check for tight fit (see the Instructions for Use
supplied with the mask).
3.3
During use
WARNING
Fully open the cylinder valve and ensure that it remains open
during use.
Users should be in a safe area before the whistle warning
commences. Evacuate to a safe area immediately if the warning
commences during an operation.
Using the supplementary air supply will use air from the cylinder
and rapidly reduce the working duration of the apparatus.
●
Regularly check the remaining cylinder pressure on the gauge.
●
If supplementary air is required, briefly press the rubber cover at the
front of the lung demand valve to deliver extra air into the face mask.
3.4
After use
WARNING
Do not remove the breathing apparatus until in a safe breathing
environment.
1. Loosen the face mask straps. As the seal to the face is broken, press
the reset button when using a positive-pressure lung demand valve.
Remove the face mask.
2. Close the cylinder valve.
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WRAH-
1653
CO
MPRESS
ED AIR
bar
0
50
'
A
4604
1
5
6
7
4
3
2
'
B
3087
C
3088
D
3104
1
2
F
4607
H
4608
J
4364
K
4365
L
4775
M
4776
N
4777/5027
4 L
6 L or 6.8 L
G
4813
1
I
4778
E
4780
1
