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APPENDIX D: Replacement of Vacuum Filter
1. Replace vacuum filter when the color on the filter element turns red.
2. Open the front panel by loosening the thumbscrews.
3. Loosen filter strap.
4. Locate elbow connectors with orange fittings on both ends of the vacuum filter.
5. Push in orange fitting towards the elbow.
6. Detach vacuum filter from elbows by pulling the black tubes (on the vacuum filter) away from
the elbows while keeping orange fitting pushed in.
7. Replace with a new vacuum filter. Observe correct orientation.
8. Insert black tube from the vacuum filter completely into the elbow. Repeat the procedure on
both ends of the filter.
9. Pull orange fitting out (towards filter) to hold filter in place.
10. Check and make sure that all tubing fit tightly in the elbows.
11. Refasten strap.
!
WARNING:
Make sure that the vacuum filter capsule is installed correctly. If the filter capsule is
installed in the reverse direction, damages to the tester may result.
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