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Issue date: 17 November 2006
46 of 80
LFB image 245554 LFB image 245542 LFB image 245562 LFB image 245540
20.11
Check clarity of vision through the visor. Check the exhalation valve cover securing screw is in
place and that the cover is not damaged or blocked (as arrowed in image 245558 right).
’B’ test: check identification numbers
20.12
Ensure the nine BA set identification numbers located on the log book front and rear, backplate
(see image 245554 and 245542), LDV (see image 245562) and face mask (see image 245540)
match and are legible. Ensure
BA tally and telemetry module identification numbers match.
Bodyguard number will be checked at 20.54.
20.13
If the numbers do
not
match check all other BA sets on the station to find the mismatch. If the
mismatch is not on the station inform the OIC and contact OSG.
20.14
Fit aids to vision if required.
’B’ test: cylinder removal SDBA
20.15
Release the anti-entanglement straps. Release the cylinder retaining strap mechanism and loosen
the strap from the cylinder body.
20.16
Ensure
0
bar is displayed on Bodyguard. Unscrew the cylinder connection to the reducer.
20.17
Remove the cylinder from the retaining strap in the opposite direction to the cylinder connection.
20.18
Remove the cylinder cover and inspect for wear and tear and legibility of markings.
20.19
Clean cylinder using Wypall x80 cloth and Safetywash solution (see 20.5 above), mark cylinder
M/T and place in the agreed collection point.
’B’ test: cylinder removal EDBA
20.20
Lay EDBA set on suitable work surface cylinder downwards. Release the anti-entanglement
straps.
20.21
Ensure
0
bar is displayed on Bodyguard. Unscrew the cylinder connection to the reducer.
20.22
Press and hold the spring plate of the backplate upper cylinder retaining bracket so it clears the
connecting lug.
20.23
Holding the top of the backplate push the set towards the cylinder retaining bracket until the
backplate separates from the cylinder pack.
Note: take care to ensure fingers are not caught in the release spring mechanism as it returns to
its natural position when the cylinder pack is released.
20.24
Remove the cylinder cover and clean, inspect for wear, tear and legibility of markings.
20.25
Clean cylinder using Wypall x80 cloth and Safetywash solution (see 20.5 above), mark cylinder
M/T and place in the agreed collection point.
