Bio-Rad BioLogic LP System - Manual (Page 3)

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To reassemble the unit:
1. Wipe the mixing chamber and threads clean.
2. Insert the stir bar back into the mixing chamber with the flat end of the stir bar toward the bottom of
the chamber. Gently push the stir bar to the bottom of the chamber.
3. Wipe the top and threads clean.
4. Replace the 1.0cm O-ring seal on the top if it is damaged. (The Bio-Rad part number for the O-ring
is 910-0075.)
5. Use a 3/8” socket driver or box wrench to screw the top on the mixer by rotating the top clockwise
until the lip around the top is just flush with the top of the mixing chamber. The seal is made by a
properly seated O-ring, not by the screw threads. To avoid damaging the unit, do not over-tighten
the top.
Figure 3. Gradient Mixer Assembly