Section 6
Routine Maintenance and Cleaning
Disassembling
Parts for Cleaning
and Disinfection
The following parts must be further disassembled for thorough cleaning
and disinfection:
• oxygen sensor assembly
• ventilator bellows assembly
• inspiratory/expiratory valves
Disassembling
the Oxygen
Sensor Assembly
Unscrew the cover from the sensor housing and remove the sensor
capsule. Take care not to drop the sensor housed inside. The sensor is
not connected to the housing.
Disassembling
the Ventilator
Bellows Assembly
Remove the bellows from the ventilator bottom assembly by unscrewing
it in a counterclockwise direction until it is released.
Unscrew the knurled ring nut around the ventilator relief valve and pull
the relief valve dome and pilot line away from the relief valve body.
CAUTION: Take special care not to change the position of the
adjustment lock ring on the ventilator relief valve dome.
Do not attempt to loosen the knurled relief valve ring nut
by twisting the pilot line hose barb.
Disassembling
the Inspiratory
and Expiratory
Valves
1. Unscrew and remove the ring nut around the plastic valve dome.
2. Separate the plastic dome, dome gasket, and valve disk from the
valve body.
6-10
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