Mindray WATO EX-55, Service Manual

Page: 149 / 322

5-29
The vaporizer manifold
assembly is damaged. Replace the vaporizer manifold
assembly.
The float flowmeter leaks. Replace the float flowmeter.
The O2-N2O cut-off valve
assembly leaks. Replace the O2-N2O cut-off
valve.
The flow regulator leaks. Replace the flow regulator.
The throttling device leaks. Re-calibrate after the throttling
device is replaced (for calibration,
refer to “Instructions of Use for
FPM-65 Flow and Pressure
Detection Device”
The type II pressure relief
valve of the ACGO assembly
or the pressure relief valve at
the breathing connection
leaks. Check and replace the faulty
pressure relief valve after locating
the problem as described in
section
5.3.4.2Leak Test of
Low-pressure Pneumatic Circuit
System
.
The ACGO assembly leaks. Replace the ACGO assembly after
locating the problem as described
in section
5.3.4.2Leak Test of
Low-pressure Pneumatic Circuit
System
.
The two fresh gas connections
(one is connected to fresh gas
and the other to ACGO) of the
circuit adapter assembly leak. Check the seals and tubes at the
two fresh gas connections after
locating the problem as described
in section
5.3.4.2Leak Test of
Low-pressure Pneumatic Circuit
System
. Replace the faulty parts
and re-install the parts.
The gas supplies cannot be
turned off after the machine
is turned off. The seal inside the system
switch assembly is damaged. Replace the system switch.
The machine cannot be
powered on after turned on. The contact switch is
ineffective. Replace the contact switch of the
system switch assembly.
The O2 flushing status
cannot be detected
correctly. The pressure switch on the
ACGO assembly which
detects the O2 flushing status
is ineffective. Replace the pressure switch on the
ACGO assembly which detects
the O2 flushing status.
O2-N2O cut-off is
ineffective. The O2-N2O cut-off valve
assembly is damaged. Replace the O2-N2O cut-off valve
assembly.