24
Emergency Reserve Manifold
2005715.05
6.8 Replace Cylinder Header
Non-return Valves
(see table 9 for part numbers)
Table 8: Header Non-return Valve Part
Numbers
GAS Type Part Numbers
Oxygen (O2) 2000288
Nitrous Oxide (N2O) 2000289
Oxygen/Nitrous Oxide (O2/N2O) 2000290
Medical Air 2000291
Nitrogen (N2) 2000292
Carbon Dioxide (CO2) 2005850
6.8.1 Complete steps in section 6.1 before
carrying out any component replacement on the
ERM.
6.8.2 Slowly turn the swivel nut of the tailpipe
connection. If the you hear gas escaping do not
fully unscrew the joint until the system is fully
drained.
6.8.3 Fully disconnect the tailpipe joints as
shown in gure23. Start to unscrew the non-
return valve, if the you hear gas escaping do not
fully unscrew the joint until the system is fully
drained. Fully disconnect the non-return valve.
Figure 24 - Line Pressure Gauge Replacement
Line Pressure Gauge complete with
compression washer (2005896)
6.9 Replace Line Pressure Gauge
(see table 10 for part numbers)
Table 9: Line Pressure Gauge Part Numbers
Nominal Line Pressure Part Number
4 Bar 2005765
7 Bar 2005766
11 Bar 2005767
CAUTION: Ensure the new gauge has the
same scale as the one being replaced.
6.9.1 Complete steps in section 6.1 before
carrying out any component replacement on the
ERM.
6.9.2 Start to unscrew the line pressure gauge,
if you hear gas escaping do not fully remove until
the system is fully drained.
6.9.3 Replace the old seals with those supplied
with the new gauge.
6.9.4 Fit the new gauge as per the old unit.
6.9.5 Follow steps in section 6.11 bring the ERM
back online.
Figure 23 - Cylinder Header Non-return Valve
Replacement
Tailpipe
Connection
Non-Return Valve
O-ring (2000239)
6.8.4 Inspect the existing seals and replace if
required, see gure 23 for seal part numbers.
6.8.5 Reconnect the tailpipe to the non-return
valve.
6.8.6 Follow steps in section 6.11 bring the ERM
back online.
6.10 Replace Cylinder Contents
contact Gauge (Se table 11 for part
numbers.
Table 10: Content Pressure Gauge Part
Numbers
Switch point Part Number
14 Bar (100 Bar Scale) 2005772
68 Bar (315 Bar Scale) 2005773