Gambro COBE 2991, Essentials Manual

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System Description
COBE 2991 Cell Processor • Essentials Guide 1-7
In
trod
uction
1 bag, causing cells or supernatant to be expressed out of the cell processing bag. The
centrifuge is mounted on a drive shaft that connects the centrifuge bowl assembly
to the centrifuge motor and provides a passageway for hydraulic fluid.
Figure 1-5: COBE 2991 centrifuge spinning with cell product separated
Seal Weight
The seal weight (shown in Figure 1-5) is a precisely-calibrated part that holds the
cell processing set’s rotating seal in place, while allowing it to move up and down
slightly during spin operations.
Seal weight
Caution:
The
seal weight
should move
freely on the guide posts.
The contacting surfaces
should be clean and free of
debris and nicks, but not
lubricated in any way. Each
seal weight is matched to a
particular COBE 2991; seal
weights are not
interchangeable.