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AFU 2 & AFU 4

2026540 Iss B

03.2018

CE

0086

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2
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Summary of Contents for AFU 2

Page 1: ...AFU 2 AFU 4 2026540 Iss B 03 2018 CE0086 ...

Page 2: ...nce with these requirements AFU 2 and AFU 4 are only designed to remove water oil and debris from the air supply AFU 2 and AFU 4 WILL NOT remove carbon monoxide CO carbon dioxide CO2 or other toxic gases or fumes from the air supply Ensure that the selection of equipment is sufficient for the tasks being undertaken and the hazards likely to be encountered Please refer to National Regulations for g...

Page 3: ...st meet the following requirements for use with constant flow apparatus being supplied from a single source No of BA Wearers Supply Pressure bar Airflow L min 1 5 0 9 0 300 500 2 1 Pair 5 0 9 0 600 1000 3 5 0 9 0 900 1500 4 2 Pairs 5 0 9 0 1200 2000 Table 2 Supply Pressure and Flow Constant Flow Apparatus For each additional wearer add a minimum of 300 to 500 litres per minute All measurements mus...

Page 4: ... psi G This unit can only be used to supply a maximum of 3 wearers of demand valve fed apparatus or 2 wearers of constant flow apparatus AFU 4 has a maximum flow capacity of 25 litres per second 53 cubic feet per minute at 7 Bar G 100 psi G This will allow up to 6 wearers 3 pairs of demand valve fed apparatus or 4 wearers 2 pairs of constant flow apparatus These units are available either mounted ...

Page 5: ...fitted to a central yoke The housings may be removed by hand to facilitate quick and easy replacement of filter elements The element should be changed as per our recommendations The recommended frequency of filter element replacement is as follows Filter Element Replace After First Stage AO Filter Maximum 6000 hours use OR Every 12 months Second Stage AA Filter Maximum 6000 hours use OR Every 12 m...

Page 6: ...During use the airline supply equipment must be under constant supervision in order to ensure that an adequate air supply is maintained and to alert wearers of potential hazards SHUTTING DOWN PROCEDURE REMOVE BREATHING APPARATUS All wearers must remove breathing apparatus in accordance with the manufacturer s instructions ISOLATE BLEED SUPPLY Isolate the airline supply and release pressure within ...

Page 7: ...umbers on the spare parts list contained in Section Spare Parts of this manual For part number information please refer to Section Spare Parts of this manual The first and second stage filter elements will operate indefinitely when only removing liquids from the supply However the build up of solid contaminants becoming trapped will lead to a pressure drop across the filter element indicated by th...

Page 8: ...ded maximum service life of 1000 hours or 2 months whichever is sooner The pressure differential will not increase during this time but the odour of oil within the air will become more prevalent Isolate the AFU from compressed air supply Depress vent valve drain at the bottom of housing to de pressurise Unscrew upper housing anti clockwise from yoke a warning whistle will sound if the housing has ...

Page 9: ...ge AC filter element complete with O Rings Note For all other component details please refer to Service Manual AFU 4 Item No Article No Description 1 2026216 First stage AO filter element complete with O Rings 2 2026217 Second stage AA filter element complete with O RIngs 3 2026219 Third stage AC filter element complete with O Rings Note For all other component details please refer to Service Manu...

Page 10: ...695 711775 Scott Safety Pimbo Road West Pimbo Skelmersdale Lancashire WN8 9RA England 2018 Scott Safety All rights reserved SCOTT the SCOTT SAFETY Logo Scott Health and Safety AFU 2 AFU 4 are registered and or unregistered marks of Scott Technologies Inc or its affiliates English GB ...

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