Dräger PSS 7000 Twin Pack Series User manual

PSS®7000 Twin Pack Series
Self-contained breathing apparatus Instructions for Use
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PSS®is a trademark of Dräger 3356970 (A3-D-P)
For Your Safety
The Dräger PSS®7000 Twin Pack Series of Self Contained Breathing
Apparatus (SCBA) incorporates a preset and sealed pressure reducer. Correct
operational condition is only valid when the pressure reducer is serviced and re-
sealed by Dräger.
●Use of this SCBA requires wearer training and observance of this
Instruction for Use.
●Use the SCBA only for the purpose specified in this Instruction for Use
under Description and Intended Use.
●Use and maintenance of the SCBA requires knowledge and compliance
with National Regulations, Laws, and Standards, governing the use of
respiratory protection apparatus in the country of use.
●Only trained competent personnel should inspect and service the SCBA at
regular intervals and a record kept of such inspections and service.
●Only trained and competent personnel should carry out the inspection and
charging of the associated compressed air cylinders.
●Dräger recommends that a Service Contract be arranged with the Dräger
Branch or Agent.
●Contact Dräger for details of Wearer Training, Service Training Courses
and Service Contracts.
●Use only original Dräger Spare Parts for service and maintenance.
●Use only original Dräger Test Equipment for service and maintenance.
●Notify Dräger if there is a component fault or failure.
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
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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.
Liability Statement
Responsibility for reliable function of the equipment transfers to the owner or
operator when the equipment is serviced, or repaired by untrained personnel,
or when used in a manner not conforming to its intended use.
Description
The Dräger PSS®7000 Twin Pack Series of SCBA incorporates a special
mounting bracket arrangement with locking mechanism, that is attached to the
backplate, providing a secure support for the range of Dräger Twin Cylinder
Packs.
The standard PSS®7000 height adjustable and articulating carrying system
provides greater performance, comfort and ease of use, resulting in reduced
wearer fatigue.
The backplate of the carrying system incorporates a sliding height adjustable
shoulder yoke that has three preset height settings. A flexible pivot joint, located
at the base of the backplate, is in line with the hip of the SCBA wearer. The pivot
joint moves in response to the twisting and bending of the wearer, improving the
weight distribution, the freedom of movement and increased manoeuvrability for
the wearer.
Refer to the specific Instructions for Use for the operation, control and testing of
the electronic monitoring unit, i.e. Bodyguard.
Intended Use
The Dräger PSS®7000 Twin Pack Series of SCBA, when used with approved
lung demand valve and associated face mask, and compressed air Dräger Twin
Cylinder Packs, provides the wearer with respiratory protection when working in
a contaminated, or oxygen deficient gaseous atmosphere.
Working duration of the SCBA is dependent on the capacity (volume) of the
selected Twin Cylinder Pack, and of course the breathing rate of wearer.
Use in potentially explosive atmospheres
The PSS®7000 Series is type tested as suitable for use in potentially explosive
atmospheres. Electronic sub-assemblies are ATEX certified.
All combinations are suitable for use in hazardous areas up to and including
zone 0 and zone 20.
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).
Technical Data
High Pressure Connection:
300bar
Standard G5/8 as per EN 144-2.
Whistle Warning Unit
Preset by Dräger to begin activation between 60bar to 50bar.
Compressed Air Cylinders
2 × 3.4L, 2 × 4.3L, 2 × 6L or 2 × 6.8L capacity cylinders (300bar) are available
in carbon-composite and full composite materials. Contact Dräger for details.
!
CAUTION
When working in a confined space using SCBA fitted with twin cylinder
configuration, it is essential to consider possible restriction to a wearer.
Preparation for Use
The following procedures must be performed before release of the apparatus
for operational use.
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NOTICE
The pressure gauge face may be fitted with a thin flexible protective
covering. This covering must be removed before first use.
Height adjustment
The carrying system length can be adjusted, and set, at the shoulder yoke, to
suit the torso length of the wearer. Three settings, marked on the set, are
available, i.e. Short (S), Medium (M) and Long (L). To set the torso length, follow
these instructions.
Refer to Fig 1.
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●Lift the apparatus into the vertical position.
●Simultaneously press the two spring loaded buttons to unlock the shoulder
yoke. Slide the yoke in the required direction, then release the buttons.
Continue sliding the yoke until the buttons engage and lock the yoke in the
required position, i.e. S, M, or L.
NOTICE
When the set is being worn, and with the adjusting straps extended
(loose), adjustment of the yoke height may be performed by a support
person.
Fitting the Twin Cylinder Pack
●Inspect and check that the threads of the valve port, and the reducer hand
wheel, are not damaged. Check that the O Ring seal, of the high pressure
(HP) connector of the reducer, is in position and not damaged. Check that
the bore to the sintered filter, in the HP connector of the pressure reducer,
is clean and free from dirt and contamination.
●Lay down the carrying frame of the SCBA horizontally and locate the
pressure reducer to the start position as shown in Fig 2.
Refer to Fig 3.
●Lift the twin pack (horizontally) by the valve end handle, and dome end of
cylinder. Align the pack centrally over the carrying frame with the handle
towards the pressure reducer. Lower the twin pack to the SCBA and, with
the fingers of the hand at the handle end, lift the reducer through the inside
of the handle. At the same time locate the locating pin (1), valve end of the
pack into the guide at the bottom support and also locate the top locating
pin to the spring plate of the top support. Press and hold down the pack to
open the spring plate and then slide the twin pack towards the reducer until
an audible ‘Click’ is heard. This indicates that the top locating pin has
located in the top support. This completes the assembly of the twin pack to
the backplate.
●Check that the top and bottom locating pins of the twin pack are correctly
located and that the twin pack is securely attached to the SCBA.
Refer to Fig 4.
●Lift and twist the reducer assembly to align the hand wheel with the port of
the valve. Screw the hand wheel of the reducer (clockwise) to the port of
the valve until an initial restriction is felt. Continue turning the hand wheel,
using only the thumb and index finger, until a definite metal to metal contact
is achieved – Do Not use tools or over tighten.
Pre-Operational Checks
Connecting the LDV to the SCBA
●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.
Refer also to the Instructions for Use provided with the Lung Demand Valve.
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NOTICE
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The following tests will verify the integrity of the assembly. These
instructions refer to an SCBA fitted with a mechanical pressure gauge.
Refer to the appropriate Instructions for Use provided for variants, e.g.
Bodyguard.
High Pressure (HP) Leak and Whistle Warning Test
●Positive Pressure type LDVs only (type A, AE or ESA) – Press the reset
button of the LDV to ensure that the positive pressure facility is ‘Off’.
●Slowly and fully ‘open’ the cylinder valve by rotating the hand wheel of the
valve (anticlockwise) until a resistance is felt. During pressurisation of the
system, a momentary sounding of the whistle warning unit will occur. Check
the pressure reading of the cylinder contents (pressure) gauge.
●‘Close’ the cylinder valve by rotating the hand wheel of the valve clockwise
until a resistance is felt. When fully closed, immediately check the pressure
reading of the contents gauge.
●After one minute, again observe the contents gauge and then ‘reopen’ the
cylinder valve – the pointer of the gauge must not show an increase in
pressure reading of more than 10bar (10bar is acceptable) – i.e. one radial
marking on the gauge face.
●Continue to the Whistle Warning Unit Check.
●While holding the contents gauge in one hand, slowly ‘close’ the cylinder
valve fully until a resistance is felt.
○A, AE and ESA type LDVs – Cover the outlet port of the LDV with the
palm of the hand. Press the centre of the rubber cover to switch ‘On’
the positive pressure. Slowly vent the system by carefully lifting the
palm of the hand from the outlet of the LDV to maintain a slow decrease
in pressure.
○N type LDVs – Slowly vent system by carefully pressing the centre of
rubber cover.
●Observe the contents gauge as the pressure decreases. The whistle should
begin to operate and sound between the following pressures: 60bar to
50bar.
NOTICE
!
Should the whistle not sound at the preset pressure, return the SCBA
to Dräger Service
●When the system is exhausted of air, activate the reset feature of the LDV
(A, AE and ESA type LDVs) to ensure that the positive pressure facility is
‘Off’.
Connecting LDV to the face mask
●Fully extend (open) the straps of the head harness of the face mask. Refer
also to the Instructions for Use provided with the face mask.
Use
Putting on the SCBA
CAUTION
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This device may only be worn by expert personnel who have been
thoroughly trained in the correct use of the device.
●If necessary, adjust and set the yoke to the required Wearer Height.
●Loosen the shoulder straps and waist strap and hang the unit over your
body. Take the weight of the system on your shoulders by pulling the
shoulder straps. Do Not tighten. Check that both the shoulder pads are not
twisted.
●Close the waist strap buckle. Pull the ends of the waist strap forwards
(Fig 5), until the strap padding fits securely and comfortably over your hips.
Tuck the strap ends between your body and the hip pads.
●Pull down the shoulder straps until the device rests securely and
comfortably on your hips. Do Not over-tighten. Pull the strap retainers down
to secure the strap ends (Fig 6).
●Fully loosen the head straps of the face mask. Place the neck strap over
the back of the neck.
●Activate the reset feature of the LDV to ensure that the positive pressure
facility is switched Off.
NOTICE
Refer to the appropriate Instruction for Use provided with any variants,
e.g. Bodyguard.
●Open (anticlockwise) the cylinder valve slowly but fully to pressurise
system. Check the content gauge.
Putting on the face mask
Refer to the Instructions for Use provided with the face mask.
!
In Use
●Regularly take a reading of the content gauge to check the pressure
remaining in the twin cylinder pack.
WARNING
!
Leave the hazard area by the shortest route once the whistle warning
unit sounds. It is recommended that the wearer should be in a safe area
before the whistle begins to sound.
●Once established in a safe area Check In with the BA control personnel.
After Use
Removal of the apparatus
WARNING
Do Not remove the apparatus until in a safe area, clear of hazard.
●Lift and pull forward on each of the bottom buckles of the straps of the face
mask – extending the straps. When the seal to the face is broken, activate
the reset feature of the LDV (PP only) to ensure that the positive pressure
facility is Off. Continue to remove the face mask. Breathe normally. Leave
the face mask hanging around the neck from the neck strap.
●Close the cylinder valve (clockwise) until a resistance is felt, i.e. the valve
is fully closed. Depress the centre of the rubber cover of the LDV to exhaust
the air from the system. Activate the reset feature of the LDV (A, AE and
ESA types only) to switch Off the positive pressure.
●Open the waist belt buckle to release the waist belt. Lift the shoulder strap
ends to release the strap retainers (Fig 6) and then lift the shoulder strap
buckles to loosen the straps.
●Remove the neck strap of the face mask from around the back of the neck
and then remove the SCBA from the shoulders. Place the SCBA down
carefully at a safe location. Do Not drop the SCBA.
1
3076
5
1913
2
2508
6
3088
3
2447
1
7
2448
4
2450
8
4278
12

PSS®7000 Twin Pack Series
Self-contained breathing apparatus Instructions for Use
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Dow Corning®and Molykote®are registered trademarks of Dow Corning Corporation 3356970 (A3-D-P)
3356970
© Dräger Safety UK Limited
Edition 10 – September 2020
Subject to alteration
Draeger Safety UK Limited
Ullswater Close Tel [phone]
Blyth, NE24 4RG Fax [phone]
United Kingdom www.draeger.com
Maintenance
After use, refer also to the table of Test and Maintenance Intervals
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Removal of the Twin Cylinder Pack
CAUTION
The cylinder valve must be closed and the system vented of pressure
before any attempt is made to remove the cylinder.
●Place the SCBA on a flat level surface. Unscrew (anticlockwise) and
remove the hand wheel of the reducer from the cylinder valve.
●With one hand, grip the handle of the Twin Pack, and with the thumb of the
other hand locate the spring plate (refer to Fig 7) of the top support.
Depress the spring plate to open the lock and at the same time slide the
twin pack towards the top of the SCBA – releasing the twin pack from the
SCBA.
●Arrange for the Twin Cylinder Pack to be inspected and ‘Recharged’.
Charging Twin Cylinder Pack
Recharge the Twin Cylinder Pack to the rated pressure indicated on the label or
stamped on the neck or shoulder of the cylinder.
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NOTICE
!
To prevent over charging of the selected cylinder, it is recommended
that a pressure limiting device is fitted to the charging compressor.
CAUTION
Air quality for compressed air breathing systems should conform to the
latest requirements of EN12021.
Only charge compressed air cylinders that:
!
●Conform to National Standards.
●Feature the original manufacturer’s test date and test mark.
●Have not exceeded test date stamped on cylinder by the last testing station.
Visual Inspection
●Before re-use of the SCBA, carry out an After Use Inspection.
●Check integrity of:
○The carrying system. Examine the apparatus for any damage. Fully
extend all harness straps.
○All straps, buckles and harness.
○Valves, hoses, connectors and cylinder supports.
●Refer to the appropriate Instructions for Use for the Lung Demand Valve,
and the Bodyguard.
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 also to the Instructions for Use for the lung demand valve, face mask and
other associated equipment.
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Manual cleaning of the breathing apparatus
●Use only clean lint-free cloths
●Clean the breathing apparatus manually using a cloth moistened with
cleaning solution to remove excess dirt.
●Apply disinfecting solution to all internal and external surfaces.
●Rinse all components thoroughly with clean water to remove all cleaning
and disinfecting agents.
●Dry all components using a dry cloth, in a heated dryer or in air.
●Contact service personnel or Dräger if disassembly of pneumatic or
electronic components is required
NOTICE
!
When reassembling the pneumatics, ensure that the medium-pressure
(MP) hose coupling (1, Fig 8) is positioned above the shoulder strap
buckle (2, Fig 8) as shown.
Carrying harness – Thorough cleaning
CAUTION
Thorough cleaning may only be carried out by suitably trained
personnel. Disassembly of the breathing apparatus by untrained
personnel is not permitted and may damage the apparatus.
●Remove the harness from the carrying system and clean using one of the
following methods:
a. Clean manually in a bath containing recommended cleaning or
disinfecting agents.
b. Machine wash (at 30 °C) using a suitable cleaning agent. Rinse the
harness thoroughly with clean water to remove all cleaning and
disinfecting agents.
●Rinse the harness thoroughly with clean water to remove all cleaning and
disinfecting agents.
●Dry all components including internal parts.
Storage
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.
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.
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.
Where the troubleshooting guide shows more than one fault or remedy, carry out repair actions in the order that they appear in the table.
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
High-pressure air leak or failed leak test Loose or dirty connector Disconnect, clean and reconnect couplings and retest
Faulty hose or component Substitute user replaceable accessories and retest
Air leak from medium- pressure hose connection at the
pressure reducer (safety relief valve)
Faulty O-ring, retainer, spring or pressure reducer Service task
High or low medium pressure Pressure reducer fault Service task
Poor sounding whistle Whistle dirty Clean whistle flute and retest
Whistle not functioning correctly Activation mechanism fault Service task
Difficulty connecting or disconnecting the medium-
pressure quick coupling
Dirty connector Disconnect, clean and reconnect couplings and retest
Burring of the male coupling Replace the hose with the male coupling
Maintenance and Test Intervals
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.
AdditionClean 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.l inspection and testing may be required in the country of use to ensure compliance with national regulations
Description Before
Use
After
Use
Every
Month
Every
Year
Every 6
Years
Every
10 Years
Complete apparatus Visual inspection (see Note 1) O O O
Functional testing OOO
Breathing cycle and static tests (see Note 2) O
Lung demand valve Check push-in type connectors for lubricant (see Note 3) O
Check the male element of the quick coupling for burring (see “Connecting
the LDV to the SCBA”)
O
Overhaul. Contact Dräger for the Repair Exchange (REX) service (see
Note 4)
O
Pressure reducer Medium-pressure check (see Note 2) O
Inspect the sintered filter (see Note 2 and Note 5) O
Inspect the high-pressure connector O-ring (see Note 2 and Note 6) O
Overhaul. Contact Dräger for the Repair Exchange (REX) service (see Note 4
and Note 7)
O O
Cylinder Charge to the correct pressure O O
Check charged pressure (stored cylinders only) O
Check test date of cylinder O
Recertification According to national regulations in the country of use
Cylinder valve Overhaul At the time of cylinder recertification
Order List
Notes
O 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).
4 Overhaul every 6 years is applied to equipment users subject to German regulations only. Users in Germany must meet the requirements of: German fire
brigade regulations (FwDV 7 and vfdb – RL0804), and German national regulations (BGR 190 or GUV R190 and GUV-I-8674).
5 Replace the sintered filter if a drop in reducer performance is observed during a flow check or if it is visibly damaged.
6 Replace the high-pressure connector O-ring if it is found to leak during functional testing or if the O-ring is visibly damaged.
7 Where the breathing apparatus is subjected to a high level of use (in training establishments etc.), reduce the overhaul period for the pressure reducer. In these
circumstances, Dräger recommend that the overhaul frequency should be less than 5,000 applications of use. An application of use is defined as a single use
of the fully assembled breathing apparatus, where the user breathes from the air cylinder. It does not include system pressurization for pre-operational checks.
Description Quantity Order code
Dow Corning®Molykote®111 100 grams 3331247