8-53 
   
 
8.58 Disassemble the Backup Flowmeter Keyboard 
8.58.1 Prepare for Disassembly 
8.58.1.1 Tools 
During parts disassembly and replacement, the following tools may be required: 
  Phillips screwdriver 
8.58.1.2 Preparations 
Before disassembly, 
  Make sure that the anesthesia machine is turned off and disconnected from the A/C power 
source. 
  Maneuver the anesthesia machine to an appropriate location and then apply the brake. 
8.58.1.3 Pre-disassembly 
1.    Refer to 8.1.1Open the Service Door to open the service door. 
2.    Refer to 8.1.2Remove the Auxiliary Output Assembly to remove the auxiliary output 
assembly. 
3.    Refer to 8.1.3Remove the Rear Cover Plate of the Work Surface to remove the rear cover 
plate of the work surface. 
4.    Refer to 8.1.4Remove the Work Surface Cover Plate FRU to remove the work surface 
cover plate. 
5.    Refer to 8.1.5Remove the Instrument Panel Assembly to remove the instrument panel 
assembly. 
8.58.2 Remove the Backup Flowmeter Keyboard 
1.    Disconnect the cable from the backup flowmeter keyboard. 
2.    Remove the two screws with the Phillips screwdriver and take out the backup flowmeter 
keyboard.