6 Maintenance and Troubleshooting
Prepare fresh alumina
1. Preheat the oven to 300 °C.
2. Pour approximately 180 grams of fresh alumina into a glass or metal container (approximately 250
mL if a graduated beaker is used). Place the container in the oven.
3. Bake the alumina for two hours at 300 °C.
4. Remove the baked alumina from the oven and allow to cool until luke warm. A desiccator may be
used to speed the cooling process.
5. Use a small spatula to gently pry the O-ring from the end fittings of each end of the trap body.
6. Inspect the O-rings. If dusty, clean with a lint-free tissue. If damaged, replace with a new O-ring.
7. Screw one of the end fittings onto the trap body.
8. Ensure the trap body is dry and the alumina is lukewarm. Pour the alumina pellets into the trap
until level with the top of the trap body.
9. Screw the other end fitting back onto the trap and tighten securely by hand.
10. Lightly tap both ends of the trap body on the work surface to remove remaining dust from the pel-
lets.
6 - 8 Smart VacPrep Operator Manual — 067-42800-01
Dec 2013
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