BIO-MED DEVICES Crossvent-2i+ - Preventative Maintenance

VIII. MAINTENANCE AND SERVICE- CONT.
50
D- PREVENTATIVE MAINTENANCE
1- RECOMMENDED MAINTENANCE SCHEDULE
Periodic preventive maintenance should be performed to insure continued proper operation of the CROSSVENT
Ventilator. The frequency of preventative maintenance is determined by many factors, some of which are:
• Frequency & length of use
• Quality of the compressed gas source(s)
• Environmental conditions
The following is a list of routine maintenance procedures and maintenance schedule.
TIMELINE
The following is a list of routine maintenance procedures and maintenance schedule.
Interval
Recommended Procedures
Prior to each use
Check battery condition
Periodic
Performance Check as shown below
Annual
Verify Calibration
Every 2 years
Major overhaul, cleaning and calibration
Battery replacement*
Recommend return to factory for this service
*Replace only with batteries supplied by Bio-Med Devices, part # PRT2268. Do not substitute.
GAS INLET FILTER
The filter element in the supply inlet fitting (DISS O
2
Input) should be replaced during major overhauls or whenever it
becomes clogged.
BATTERY CHECK
The battery has an internal thermal fuse. This fuse will open if it gets hot due to excessive current flow or if the battery
itself becomes too hot. It will recover when the cause is eliminated. If the fuse is suspect, check for voltage across the red
and black wires coming from the battery. If the battery is hot and no voltage is present, allow it to cool and check again. If
there is no voltage and it won’t take a charge, but the charging circuit is good, replace the battery.
The battery should be checked before each use. To check:
Turn on the Crossvent and remove the external power supply connector. The ventilator should continue to operate
correctly. The Power Source window should display "BATT" and the audible alarm should sound. Pressing the Power
Source window should permanently silence the audible alarm. Restoring the external power should cause the Power Source
window to show "EXTRNL ". If a battery operation alarm does not sound when AC power is lost or if the unit fails to
operate on battery, the unit should be removed from service and tested.
One minute after turn-on observe the battery gauge. If the gauge originally showed 100% and now shows less than 50%
charge remaining, put the CROSSVENT on charge. Recheck in 2 hours. If the battery condition has not improved, remove
the unit and power supply from service until the problem is identified and corrected.
2- PREVENTIVE MAINTENANCE PARTS KITS
PART NUMBER- PRT2233
Included in the kits are the following parts: Filter, MAX/D.A.R.V. Pressure Line, PEEP Pressure Line, Flush Line, Base
Flow Line. Additionally recommended parts to replace are the Battery, L/min (Flow) Knob, PIP Valve, and PEEP
Pressure Valve if the clear tubing off the regulator shows any contamination or discoloration inside it. A slightly cloudy
look to the large clear tube from the regulator to the flow valve may be normal in some units. The small, clear tubes should
be clear, however.
For instructions on replacing these parts, refer to the Disassembly & Reassembly Section later in this manual.