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7 - 2 Service Manual Revision 02
Preventive maintenance Servo-i Ventilator System
General
• A 'Preventive maintenance' must be performed at
least once every year as long as the unit is not
used more than normal. Normal operation is
estimated to correspond to approx. 5,000 hours of
operation.
• The Battery modules shall be replaced every three
years.
• The internal Lithium batteries on PC 1771 and
PC 1772 shall be replaced every five years.
• After or in combination with performing the
'Preventive maintenance' described in this chapter,
a 'Routine cleaning' and an 'Extended cleaning of
Inspiratory channel' must be performed.
For cleaning procedures, refer to the 'Servo-i
Ventilator System – User's manual'.
• In some parts of the Preventive maintenance, as
described in this chapter, access to the Field
Service System (FSS) is required.
• Some optional equipment used with the Servo-i,
but not covered by this Service Manual, may also
demand maintenance actions. Refer to the optional
equipments documentation. Example on such
optional equipment are:
– Humidifier
– Compressor Mini.
Preparations
• Make sure that the Servo-i works properly before
performing any maintenance.
• Set the On/Off switch on the User Interface to Off.
• Disconnect the mains power cable.
• Disconnect the gas supplies (wall and/or cylinder).
• Remove patient tubing.
• If fitted, remove bacteria filter from the expiratory
inlet.
Equipment
• Standard service tools.
• Barometer (or information about the actual
barometric pressure).
• Access to the Field Service System (FSS ).
Recommended but not required.
• Preventive maintenance-kit containing all parts
needed during the maintenance.
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