GE Datex-Ohmeda Aisys Carestation Reference Manual page 311

Replace the relief valve
• Hold the backpressure plug (
pliers while turning the relief valve (
counterclockwise to remove it.
• If you are replacing the relief valve and the
backpressure valve ( ), remove the relief valve
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and the backpressure plug as a unit before
replacing the relief valve.
Replace the backpressure valve
• Loosen the mounting screw (
• Pull on the backpressure plug as you continue to
loosen the mounting screw until both the screw and
plug come loose.
• Use an angled probe to grab the backpressure
valve ( ) and pull it out of the manifold.
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(If the machine is on, hold a hand over the
backpressure valve bore and push the alternate O
button; the backpressure valve may pop out. Push
the alternate O button again to disable flow.)
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• Inspect and replace the plug o-ring if required.
• Insert the backpressure valve into the manifold; note the direction (flow arrow should point out of the manifold).
• Using only a finger, push the backpressure valve into the bore.
• Position the plug assembly and the mounting screw together in place.
• Tighten the mounting screw while pushing down on the plug assembly until it is fully seated.
To replace the Flowmeter subassembly
• Refer to the Installation Instructions included in the
Flowmeter Subassembly Kit.
Replace the inflow check valve assembly
• Refer to the Installation Instructions included in the
Inflow Check Valve Assembly Kit.
To replace the valve block subassembly
• Refer to the Installation Instructions included in the
Valve Block Subassembly Kit.
M1046983 04/08
) with non-marring
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)
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).
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2
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9 Repair Procedures
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