SP Scientific Freezemobile Series, Operator'S Manual, Page: 43 / 54

VirTis Freezemobile 25L and 35L General Maintenance
Rev 005, 02/12 33
© SP Scientific 2012
Door Gasket
The door gasket should be routinely inspected for cracks. To check the door gasket:
1. Remove the door gasket.
2. Grip the gasket with both hands and turn it inside out.
3. Inspect the inside of the gasket, which has the highest potential for
developing a problem.
4. If any inconsistencies are found in the material (
e.g.
, cuts, cracks, dry rot,
rippling), replacement is necessary.
5. Reinstall door gaskets on a clean, grease-free metal rim. Remove excess
grease from the metal using isopropyl alcohol on a clean paper towel or cloth.
The gasket may be cleaned with isopropyl alcohol as well.
6. Once the gasket is installed, apply a very thin coating of high vacuum grease
to the outer surface of the gasket. The gasket should appear slightly moist.
Quickseal Valves
Freezemobile Series Freeze Dryers have several optional components that come
equipped with Quickseal valves. These valves should be serviced at least once a
year.
To service the Quickseal valves:
1. Remove the valves from their ports.
2. Twist and pull each white selector until it dislodges from the black rubber body
of the valve.
3. Clean the valves thoroughly with isopropyl alcohol to remove grease and dirt.
4. Inspect each cleaned selector carefully for damage.
Note: Do not use broken flask adaptors, as they can damage the selector.
5. If scratches or cracks are found, the selector should be replaced.
6. Apply a thin film of high vacuum grease to acceptable selectors and
reassemble.