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Gaskets, Tubing & Connections
1. Inspect gasket(s) for cracks or defects. Ensure the gasket is clean. Apply a thin
coat of vacuum grease to the gasket. Keep in mind too much vacuum grease can
cause leaks.
2. Check the drain line and ensure the quick connect drain fitting is disconnected
from the quick connect drain coupling.
3. Check all rubber vacuum tubing for signs of deterioration or cracking.
4. Check all connections and make sure they are secure and leak tight.
Door Adjustment
The following adjustments can be made if the door is not sealing properly when vacuum
is applied.
1. The latch can be adjusted to increase the force
between the door gasket and the chamber
sealing surface.
a. Open the door.
b.
Using two ½” wrenches, loosen the nuts
securing the latch pawl.
c. Move the latch pawl towards the door to
tighten the latch.
d. Tighten the nuts.
2. The door hinges can be adjusted to move the door in towards the chamber
sealing surface.
a. Loosen the screws to the hinge covers and rotate the hinge cover out of
the way.
b. Turn on the vacuum pump using the extraction freeze dryer controls.
c. After the vacuum level reaches approximately 5 mbar, loosen the six
screws on the door hinges.
Do not remove the screws.
d. Once the vacuum level reaches approximately 1 mbar, tighten the six
screws.
