A5/A3™ Service Manual 046-001141-00 7
Foreword Introduction
Foreword
This Service Manual is intended as a guide for technically qualified personnel performing repair and 
calibration procedures.
Warnings, Cautions, and Notes
Please read and adhere to all warnings, cautions, and notes listed here and in the appropriate areas 
throughout this manual.
A WARNING is provided to alert the user to potential serious outcomes (death, injury, or serious 
adverse events) to the patient or the user.
A CAUTION is provided to alert the user to use special care necessary for the safe and effective use of 
the device. They may include actions to be taken to avoid effects on patients or users that may not be 
potentially life threatening or result in serious injury, but about which the user should be aware. 
Cautions are also provided to alert the user to adverse effects on this device of use or misuse and the 
care necessary to avoid such effects.
A NOTE is provided when additional general information is applicable.
Warnings
WARNING: Whenever using anesthetic gases, nitrous oxide, oxygen, or any 
hospital gas, always follow the appropriate agent evacuation/
collection procedures. Use the hospital gas evacuation system.
WARNING: Use only an approved lubricant on any O-ring in contact with oxygen. 
Krytox® is the recommended oxygen service lubricant.
WARNING: For continued protection against fire hazard, replace all fuses with the 
specified type and rating.
WARNING: In order to prevent an electric shock, the machine (protection class I) 
may only be connected to a correctly grounded mains connection 
(socket outlet with grounding contact).
WARNING: Remove all accessory equipment from the shelf before moving the 
anesthesia machine over bumps or on any inclined surface. Heavy top 
loading can cause the machine to tip over causing injury.
WARNING: Possible explosion hazard. Do not operate machine near flammable 
anesthetic agents or other flammable substances. Do not use 
flammable anesthetic agents (e.g., ether or cyclopropane.)
WARNING: The use of anti-static or electrically conductive respiration tubes, when 
utilizing high frequency electric surgery equipment, may cause burns 
and is therefore not recommended in any application of this machine.
WARNING: Possible electric shock hazard. The machine may only be opened by 
authorized service personnel.