24 Dräger PSS BG 4 plus
Maintenance
4.4.10 Fitting the breathing hoses
When fitting the breathing hoses, observe the following:
The breathing hoses should not be twisted.
The marks ("A") on the breathing hose and connecting
piece are 90° offset. The connector points upwards.
1. Slide three reinforcing rings over each of the two breathing
hoses.
2. Slide a bayonet ring over the ends of each of the two
breathing hoses.
3. Slide the sealing cuff on one breathing hose, marked "A"
(A-1), onto the breathing air cooler connecting piece.
4. Slide the other sealing cuff (A-2) on this breathing hose
onto the short connecting piece (A-3).
5. Slide the short sealing cuff on the other breathing hose (A-5)
onto the connecting piece on the CO
2
absorber.
6. Slide the sealing cuff on this breathing hose, marked "A"
(A-4), onto the connecting piece grommet, marked "A".
7. Secure the ends of the breathing hoses with bayonet rings:
Slide bayonet rings over the sleeve and connector and turn
until they engage.
8. Fasten both breathing hoses with safety loops onto the
shoulder straps (figure B). Do not pull on the safety loops.
Push the ends of the loops under the hoses.
NOTICE
After assembly, the storage time of the CO
2
absorber
is reduced to 6 months, even if breathing bag,
breathing hose and pressure relief valve are
connected and the breathing circuit is sealed with the
R 33 588 sealing cap.
Draeger Training 11/16 rev 1
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