Vacuum System - Beckman Coulter Optima TLX Instruction Manual

Maintenance

VACUUM SYSTEM

Chamber O-ring
Purging Moisture from the Vacuum Pump Oil
5-2
For optimum performance of the vacuum system, keep the chamber
O-ring (889164) and area around the O-ring clean. (Instrument
O-rings have not been designed as bioseals for aerosol containment.)
Wipe the area with a cloth dampened with a mild detergent such as
Beckman Solution 555™ (339555), diluted 10 to 1 with water.
Clean the O-ring every 3 or 4 months with alcohol and a lint-free
cloth or tissue and coat it lightly, but evenly, with silicone vacuum
grease (335148). If the O-ring becomes damaged, replace it as
follows.
1. Remove the old O-ring with a blunt tool, being careful not to
scratch the instrument.
2. Clean the groove and surrounding surface area with a cloth
dampened with a mild detergent such as Beckman Solution 555
(339555).
3. Apply a light, even coat of silicone vacuum grease to the new
O-ring and place it into the groove near the door.
4. With one thumb, hold the O-ring down (where it meets the door)
while using your other hand to stretch it across the chamber. The
stretching action will force the O-ring into place under the door.
5. Insert the rest of the O-ring into the groove.
If a chamber pressure of 500 microns cannot be reached in about 3
minutes, there may be moisture in the vacuum pump oil. To purge this
moisture:
1. Leave the instrument turned on with the door closed for about
3 hours or, if convenient, overnight.
2. Call your Beckman Coulter Field Service representative to change
the vacuum oil if it remains contaminated. (The instrument will
continue to display a VAC message after following the instruction
in Step 1.)