Dräger Perseus A500 Instructions For Use Manual page 64

Assembly and preparation
2 Screw in the quick release screws (B) tightly
with a clockwise rotation of 90°, e.g., with a
coin.
Inserting the non-return valves
There are recesses in the valve cages of the non-
return valves. These recesses are arranged
differently on the red valve cage (inspiratory valve)
than on the blue valve cage (expiratory valve).
When inserting the valve cages, these recesses
align with the corresponding lugs on the lower
housing of the breathing system.
Perform the following steps for non-return
valves (C) and (D):
1 Align the valves correctly.
2 Insert the valves.
64
B
B
C
D
Fitting the APL valve
1 Set the APL valve vertically on the upper
housing of the breathing system.
2 Align the APL valve correctly and screw it tight
with the knurled nut (E).
When the breathing system is installed, points (F)
must point towards the user.
WARNING
Risk of an incorrectly set pressure limitation
If the lower dot marked on the APL valve is
not aligned correctly, APL valve settings may
be made incorrectly or read off incorrectly.
When fitting, take care that the lower dot is
facing the user during operation.
Instructions for use Perseus A500 SW 2.0n
F
E