Pneumatic Circuit System Problems Repair and Troubleshooting
5 - 50 046-006272-00 A7™ Service Manual
FIGURE 5-41
5. Release the negative pressure ball. If the negative pressure ball is fully expanded within 30
seconds, it indicates that tube connected with the system switch assembly is damaged.
6. Turn off the system switch.
7. Pull out the 3126-08-00 tube plug which was used to occlude tube No.43 before.
8. Flatten the negative pressure ball to remove the gas inside.
FIGURE 5-42
9. Release the negative pressure ball. If the negative pressure ball is fully expanded within 30
seconds during one of the two tests, it indicates that the system switch assembly is damaged.
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