
Every 6 months.
Remove Oxylog from its mount.
Unscrew pressure-gas line of the
mand valve and seal the connections.
Establish test setup
Components 6, 7, 8 are comprised in test
set 84 10 072.
1 Non-rebreathing valve with
5 Pressure-gas line, 5 bar
check valve
84 08 568
6 Cap nut
84 08 298
2 Ventilation hose
84 04 063
7 Screw plug
84 08 299
3 Demand valve
8 Mouthpiece
84 07 303
4 Oxylog
Open oxygen-cylinder valve.
Generate a negative pressure of about
Set switch at Oxylog to
-10 mbar with your mouth.
Fit non-rebreathing valve to silicone
The unit is sufficiently leakproof if the
hose.
pressure change from -6 mbar to
-2 mbar takes at least 20 seconds.
18