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Scott Safety RAS, Manual

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6

RAS

DONNING POCEDURES

ATTACHING THE FILTER 

WARNING:  When breathing from an airline, 

a filter cover, or blanking plug must be in 

place to ensure that the first breath will 

activate.

Check that the cord from the filter cover is 
around the filter connector.  Check that the 
filter is in-date (see filter label).

Check that the filter O-ring is in place and 
in good condition.  Screw the filter to the 
facemask.

If a filter is not used a blank plug must be fitted 
in its place.

DONNING THE BANDOLIER

Hang the facemask from the neckstrap and 

don the bandolier so that the DV hose is over 
the right shoulder.

Fasten the waistbelt and adjust the shoulder 
strap for a comfortable fit.  

FACEMASKS

Hold the head harness lower straps, place chin 
in chin-cup and pull straps over back of head, 
brushing hair away from faceseal.

Summary of Contents for RAS

Page 1: ...RAS 2026506 A 02 2013 0086 ...

Page 2: ...ANASEAL VISION 3 PROMASK FACEMASK 3 BANDOLIER AND WAISTBELT HARNESS 4 PRE USE AND MONTHLY CHECKS 4 INSPECTION 4 BANDOLIER WAISTBELT 5 DV FACEMASKS 5 AIRLINE CHECKS 5 DONNING PROCEDURES 6 ATTACHING THE FILTER 6 DONNING THE BANDOLIER 6 FACEMASKS 6 NEGATIVE PRESSURE TEST 7 POSITIVE PRESSURE TEST 7 FACE SEAL TEST 8 DEMAND VALVE TEST 8 AIRLINE SUPPLY 8 WHILE IN USE 8 DOFFING 9 AFTER USE 10 CLEANING 10 ...

Page 3: ...s likely to be encountered Please refer to National Regulations for guidance Adequate protection may not be provided in certain highly hazardous atmospheres The apparatus must be tested and serviced in accordance with Section Scheduled Maintenance and the notes in Section Personnel Training and Servicing The quality of air used to supply and charge breathing apparatus must meet the requirements of...

Page 4: ... taken at the wearer end of the airline An airline flow tester Article Number 1035978 is available from Scott Safety Example for8users 4pairs therecommended flow is 4 x 300 150 1800 litres minute Table 1 Wearer Air Consumption No of Wearers Airflow L min 1 300 2 450 3 750 4 900 Airline hoses used with Scott Safety breathing apparatus must be Scott Safety products approved to EN14593 1 2005 PERSONN...

Page 5: ...ontaminant entering the breathing hose while the wearer is disconnected from the airline FILTERS The service life of the filters is dependent on the environment and the use by date marked on the filter DO NOT use damaged wet clogged or time expired filters The filter screws into the facemask s screw connector A filter cover is provided to preserve the filter when an airline is in use A blank plug ...

Page 6: ...n and in good condition The facemask especially the visor is in good condition with the harness fully slackened When airline hoses are used check that Hoses are in good condition free of splits abrasions and crush damage Couplings are in good condition and can be made and broken easily The air supply conforms to EN 12021 1999 See Introduction Check that the filter is suitable for the workplace haz...

Page 7: ...he DV outlet Check that the facemask is clean and undamaged Check that the orange DV O ring is clean and in good condition Fit the DV to the facemask and turn it in the facemask fitting until the red locking catch engages fully Twist the DV gently to confirm that it has engaged AIRLINE CHECKS Check the supply airline flow and pressure Remove connector dust caps and check for wear and damage Make c...

Page 8: ...bel Check that the filter O ring is in place and in good condition Screw the filter to the facemask If a filter is not used a blank plug must be fitted in its place DONNING THE BANDOLIER Hang the facemask from the neckstrap and don the bandolier so that the DV hose is over the right shoulder Fasten the waistbelt and adjust the shoulder strap for a comfortable fit FACEMASKS Hold the head harness lo...

Page 9: ...he filter seal with the palm of the hand to seal the filter inlet and inhale Hold your breath for 10 seconds Check that the facemask pulls on to the face and does not pull away during the 10 seconds Re connect the airline supply POSITIVE PRESSURE TEST Check that the bypass switch is in the closed position and inhale sharply to activate the first breath mechanism Insert a finger under the mask seal...

Page 10: ...ils to supply air open the bypass switch and go immediately to a safe breathable atmosphere In the unlikely event that the DV fails to supply air even when the bypass is open go immediately to a safe breathable atmosphere DO NOT remove the facemask while in a hazardous atmosphere Ensure that the airline does not become trapped snagged kinked or crushed Ensure that the airline air supply is suffici...

Page 11: ...ve the facemask Push the airline couplings together and pull back the CEN collar to disconnect the airline hose Open the DV bypass to vent any compressed air from the facemask and close the bypass Replace the dustcap on the coupling Release the waistbelt and remove the apparatus Clean and check the apparatus in accordance with Section After Use Cleaning and Testing before returning it to service ...

Page 12: ...an the valve body using a lint free cloth moistened in a mild solution of soap and warm water CHECK APPARATUS Operate the DV locking catch and bypass switch several times and check that they do not stick If either is not free moving attach explanatory note and return for service Check that the harness is not worn or damaged and that buckles and fastenings are fully operational Apparatus with major...

Page 13: ......

Page 14: ... 1695 711775 Scott Safety Pimbo Road West Pimbo Skelmersdale Lancashire WN8 9RA England 2011 Scott Safety All rights reserved SCOTT the SCOTT SAFETY Logo Scott Health and Safety RAS are registered and or unregistered marks of Scott Technologies Inc or its affiliates English GB ...

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