AFU 2 & AFU 4
5
CONNECT SUPPLY
Connect breathing air supply to the
AFU inlet and ensure that the flow is in
the correct direction (indicated by an
arrow on top of the filters). Check that
inlet pressure does not exceed 16 bar.
CAUTION:
The AFU MUST be positioned
vertically or it will not function
correctly.
Ensure that the positioning of the
AFU is such that it is unlikely to be
damaged, tilted or overturned.
Ensure that the hose cannot become
kinked or constricted.
The second stage Bulls eye is showing
a white colour. Renew filter element if
the red ‘warning’ indicator is showing.
Listen for any audible leaks and ensure
that all hose connections and filter
retainers are secure. Rectify faults
immediately.
CHECK SUPPLY
PRESSURE AND FLOW
Connect breathing apparatus supply
hose to the AFU outlet. Check that
supply pressure and flow at the
extremity of the hose, adjacent to
the wearer, are in accordance with
the figures given in Table 1 or 2 (as
appropriate).
If the AFU inlet pressure is sufficient but
the hose outlet pressure is low, check
to ensure that the filters do not need
replacing. Replace the filters if required.
Once fully satisfied that the equipment
is functioning correctly, proceed to
undertake the required tasks.
WARNING:
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 the supply line using
bleed valve, (if fitted), or by venting
through the breathing apparatus.
DISCONNECT HOSES/
EQUIPMENT
Disconnect all hoses from equipment.
Coil all hoses and connect hose end
couplings for safe storage.
CLEAN, EXAMINE AND
TEST EQUIPMENT
Clean and test all equipment thoroughly
and inspect for signs of wear or damage
in accordance with the manufacturer’s
instructions. All faults must be rectified
immediately.
RECORD DETAILS OF USE
A record must be maintained and kept
detailing the use of airline breathing
apparatus and associated equipment.
Information recorded usually includes:
Name and address of the employer
responsible for the equipment.
Particulars of the equipment used,
including details of the manufacturer,
model number or mark sufficient to
enable clear identification.
Date of use and length of time the
equipment was in use.
Date of the examination together
with the name, signature or unique
authentication mark of the examiner.
Condition of the equipment and
details of any rectification work
carried out.
Содержание AFU 2
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