Prepare for Disassembly Repair and Disassembly
6 - 2 046-006272-00 A7â„¢ Service Manual
6.1 Prepare for Disassembly
6.1.1 Tools
During parts disassembly and replacement, the following tools may be required:
• Metric Allen wrenches (1.5, 2, 2.5, 3, 4, 5, 6, 8, 10mm)
• Phillips screwdriver (#1 and #2)
• Diagonal pliers
•Flathead screwdriver
• Metric M3 and M4 socket screwdriver
• Adjustable wrench
• Tweezers
• Krytox Lubricant (P/N: 0510-00-0020)
6.1.2 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 as described below.
• Disconnect all pipeline and cylinder gas supplies.
• Prepare the tools required for disassembly.
• Maneuver the anesthesia machine to an appropriate location and then apply the brake.
CAUTION: The internal parts may be contaminated. Wear special gloves during
disassembly and inspection.
6.1.3 Bleed Gas Pressure
Make sure to bleed down the gas pressure inside the anesthesia machine before disassembling
pneumatic fittings to avoid personal injury or equipment damage. To bleed gas pressure:
1. Close other cylinder valves and disconnect pipeline gas supplies. Do not disconnect the O2
pipeline. If O2 pipeline is not available, connect O2 cylinder and open the O2 cylinder valve.
2. Set the system switch to ON.
3. Turn on all the flow controls (except O2).
4. Make sure that N2O and AIR pipeline pressure gauges read zero.
5. Disconnect the O2 pipeline supply (or close the O2 cylinder valve). Push the O2 flush button to
bleed O2 from the system.
6. Set the system switch to OFF.
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