A5/A3™ Service Manual 046-001141-00 5 - 49
Repair and Troubleshooting Pneumatic Circuit System Problems
FIGURE 5-51
8. Repeat step 5 and step 6 every time when the vaporizer manifold test fixture is transferred to the
next position. Once the negative pressure ball is fully expanded within 30s, it indicates that the
rubber plain washers or its lower surface contacted mechanical surface are damaged. Handle
this problem as described in the troubleshooting table. If the four tests are all past, then
continue the following tests.
9. Put the seal ring back, mount the vaporizer and turn it on.
FIGURE 5-52
10. Repeat step 5 and step 6 every time when the vaporizer manifold test fixture is transferred to the
next position. Once the negative pressure ball is fully expanded within 30s, it indicates that the
seal rings are damaged. If the two tests are both past, then the vaporizer manifold assembly and
the four seal rings are OK.
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