A5/A3™ Service Manual 046-001141-00 5 - 23
Repair and Troubleshooting Pneumatic Circuit System Problems
If it is hard to install and remove the test fixture, apply a layer of KRYTOX lubricant to the seals (as 
shown below).
FIGURE 5-13
5.3.1.2 Precautions for Use of Flow Sensor Pressure Sampling 
Pipeline Test Fixture
There are two connectors for pressure sampling lines on the flow sensor pressure sampling pipeline 
test fixture, as shown below.
FIGURE 5-14
The connector for pressure sampling line can be connected with Ø6 silicone tubes. When using the 
flow sensor pressure sampling pipeline test fixture, remove the expiratory or inspiratory flow sensor 
from the breathing system first. Then mount the flow sensor pressure sampling pipeline test fixture 
onto the position where the expiratory or inspiratory flow sensor was originally mounted and tighten 
the Inspiration/Expiration Connector Coupling, as shown below. Perform test after connecting the Ø6 
silicone tube to the connector for pressure sampling line.