176 BD FACSCalibur Instructions for Use
Changing the Bal Seal
The Bal seal is a Teflon ring that forms a seal with the sample tube enabling
proper tube pressurization. Over time, this seal becomes worn or cracked and
requires replacement. Replacement is necessary if a proper seal is not formed
when a sample tube is installed on the SIP.
1 Remove the outer sleeve from the SIT by turning the retainer
counterclockwise.
Figure 8-2 Removing outer sleeve
Work carefully since the outer sleeve can fall out as you loosen the retainer.
Any instrument surface that comes in contact with biological specimens can
transmit potentially fatal disease. Use universal precautions when cleaning
the instrument or replacing parts. Wear suitable protective clothing,
eyewear, and gloves.
Bal seal
outer sleeve
retainer
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