110 BD LSR II User’s Guide
Changing the Bal Seal
The sample injection tube Bal seal is a Teflon ring that forms a seal with the
sample tube and ensures 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.
; Tip Indications that a proper seal has not formed include:
• the tube will not stay on the SIP without the tube support arm
• the tube is installed, RUN is pressed on the cytometer, and the RUN button
is orange (not green)
To replace the Bal seal:
1 Remove the outer droplet sleeve from the sample injection tube by turning
the retainer counterclockwise.
Figure 6-6 Removing the outer sleeve
; Tip Work carefully—the outer sleeve can fall out as you loosen the
retainer.
Bal seal
LSR2.book Page 110 Tuesday, April 25, 2006 3:34 PM
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