Dräger LFB PSS 7000 - Page 76

Appendix 4
476 Issue date: 17 November 2006 76 of 80
EV
CHECK IN ORDER
P
NYP
46
BREATHE steadily until the air is exhausted (0 bar displayed) and the face mask collapses onto
your face.
47
CONTINUE HOLDING BREATH for approximately 8 seconds whilst slowly
moving your head up, down and side-to-side to ensure the face mask is not
leaking inwardly (negative pressure).
This will be noted by the face mask failing to remain ‘sucked down’ onto your face.
48
After 8 seconds, BREATHE OUT SLIGHTLY, release sliding buckles and remove the face
mask.
CHECK the operation of radio interface equipment if fitted.
49
EXTEND straps,
WIPE the face mask seal and inner mask with a damp PALTECH wipe.
CHECK and ensure the two inner mask non-return valves are still in place and are seated
correctly.
RESTOW the face mask in the face mask bag.
Note: do not attach neck loop retaining stud.
50
FILL OUT the BA tally (enter rounded down pressure noted at EV 44).
ENSURE that printed details on the BA tally are clear and enter rank and name.
51
CHECK operation of BA set retaining bracket and adjust height if
appropriate.
CONNECT charging lead.
REPLACE BA set and ensure that the BA set is being charged (indicated
by green LED on rechargeable battery pack and Bodyguard displaying
‘battery charging’ icon).
ENSURE retaining bracket holds the BA set is securely.
52
PLACE BA tally into entry control board (ECB).
ENSURE signal is achieved (green and blue LEDs illuminated on Bodyguard
and ‘telemetry signal radio’ icon displayed on ECB).
53
REPLACE Bodyguard key.
CHECK that the Bodyguard returns to the ‘battery charging’ icon.
54
CHECK if available, that the spare cylinder is correctly stowed and is within the hydraulic test
date.
Note: EDBA, check station stock.
55
COMPLETE the BA log book (enter pressure recorded at the cylinder contents check EV
26).
Note: if there is a leak as a result of the ‘breathe down’ sequence above the wearer should repeat the ‘B’
test ‘breathe down’ sequence from EV 36 above, paying particular attention to correctly fitting the face
mask onto the face and the adjustment of the head harness. The straps should not be over tightened.
F6187 (January 2020, version 8)