A5/A3â„¢ Service Manual 046-001141-00 5 - 55
Repair and Troubleshooting Pneumatic Circuit System Problems
FIGURE 5-58 Leak test of the breathing system
1. Leak test of the breathing system in the mechanical ventilation mode Perform the test as
described in‘‘Breathing System Leak Test in Mechanical Ventilation Mode’’ on page 2-20.
2. Leak test of the breathing system in the manual ventilation mode
Tools required:
• Breathing tube (quantity: 3)
• Breathing tube Y piece (quantity: 1)
Test procedures:
1. Let the system enter Standby.
2. Mount the breathing system properly.
3. Set the Auto/Manual ventilation switch to the Manual position.
4. Set the pressure of the APL valve to maximum.
5. Occlude the inspiratory and expiratory ports and bag arm port by using three breathing
tubes and one breathing tube Y piece as shown below.
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