8-43 
 
10.  Switch on the pipeline source and record the reading on the pressure gauge. If the 
deviation between this reading and the reading on the O2 pipeline pressure gauge 
exceeds 0.1 MPa (1 bar), the O2 pipeline pressure gauge is damaged. Handle this issue 
according to the fault locating table.   
11. Reconnect pipeline 39.  
 
NOTE 
  For the number of PU tubes, refer to the corresponding description in section 9.5.2 
Pneumatic Connections. 
 
 
II. N2O inlet assembly 
1.  Stop the gas supply. Disconnect pipeline 49 connecting to the EFCS flowmeter.   
2.  Connect pipeline 49 to the 1 MPa test pressure gauge. 
 
 
3.  Switch on the N2O and O2 sources. Record the reading on the pressure gauge. If the 
deviation between this reading and the reading on the N2O pipeline pressure gauge 
exceeds 0.1 MPa (1 bar), the N2O pipeline pressure gauge is damaged. Handle this issue 
according to the fault locating table.   
4.  Switch off the N2O source.   
5. Reconnect pipeline 49.