CELL-DYN 3000 System Operator’s Manual 9-17
9140240E — May 1995
Chapter 9 Maintenance
Weekly
Weekly Maintenance Procedures
WARNING: Potential Biohazard. Follow established
biosafety practices when performing maintenance, service or
troubleshooting procedures. Wear gloves, lab coat, and suitable
eye protection. Refer to Chapter 8, Precautions, Limitations and
Hazards, for additional information.
CAUTION: Use powder-free gloves when performing the
maintenance procedure to avoid contaminating the instrument.
Shear Valve
Regular cleaning and lubrication of the shear valve is required for
optimal performance. Any reagent or blood residue may cause the valve
to leak or function improperly. The shear valve assembly is depicted in
Figure9.6.
The shear valve is made of a ceramic material and consists of three
separate sections — front, center and rear. The rear and front sections are
connected to the CELL-DYN 3000 by tubing that should not be removed.
NOTE: The center section is not connected by tubing and must
be handled carefully, as it will break if it is dropped. Care should
be taken to avoid chipping, scratching or otherwise damaging
any of the sections.
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