8-12 
     
 
 
  
 
8.13.7 Remove the Display Assembly 
1.    Remove the six screws (marked by ○ in Figure A) with the Phillips screwdriver to remove 
the rear cover plate of the display assembly. 
2.    Remove the four screws (marked by ○ in Figure B) fastening the cable with the Phillips 
screwdriver to remove the cable. 
3.    Pre-loosen the two screws (marked by △ in Figure B) with the Phillips screwdriver and turn 
them counterclockwise three or four rounds. Then remove the four screws (marked by □ in 
Figure B). Finally, vertically lift the display assembly up to remove it. 
 
Figure A  Figure B 
   
 
 
8.14 Disassemble the N2O, Air, and O2 Inlet Assemblies 
8.14.1 Prepare for Disassembly 
8.14.1.1 Tools 
During parts disassembly and replacement, the following tools may be required: 
  M4 hexagon screw spanner 
  Phillips screwdriver 
 
8.14.1.2 Preparations 
Before disassembly, 
  Make sure that the anesthesia machine is turned off and disconnected from the A/C power 
source. 
  Bleed down the gas pressure inside the anesthesia machine to avoid personal injury or 
equipment damage. 
patient circuit 
O2 cell door