9-49 
 
9.3.13 Remove Breathing System 
1.  Ensure that the above-mentioned assemblies are disassembled. Then hold the breathing 
system with one hand. Press down the locking catches on the circuit adapter with the 
other hand. 
 
2.  Remove the breathing system from the circuit adapter forcibly with both hands. 
 
 
NOTE 
  If it is hard to push the breathing system into or out of the circuit adapter, you 
need to apply some lubricant (M6F-020003---: “Dupont Krytox high-performance 
fluorine lubricating grease”) to the seal on the pneumatic connector to reduce 
friction.