Micromeritics TriStar II 3020 Maintenance Instructions Manual page 15

TriStar II 3020 Scheduled Maintenance Instructions
10. Be sure the trap body is dry and the alumina is lukewarm; pour the alumina pellets into
the trap until they are just below the threads of the trap body.
11. Screw the other end fitting back onto the trap and tighten securely by hand.
12. Lightly tap both ends of the trap body on the work surface. This will remove any
remaining dust from the pellets.
13. Inspect the centering ring before placing it back on the intake port. If it appears to have
flattened, replace it. A flattened centering ring can cause vacuum leaks.
There are two types of centering rings, use the one with the smaller opening at the intake
port
Jun 09
Centering Ring
Maintenance (Power Disconnected)
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