112 BD LSR II User’s Guide
Changing the Sample Tube O-Ring
The sample tube O-ring, located within the retainer, forms a seal that allows the
droplet containment vacuum to function properly. Replace the O-ring when
droplets form at the end of the sample injection tube while the vacuum is
operating.
1 Remove the outer droplet sleeve from the sample injection tube.
Turn the retainer counterclockwise and pull the outer sleeve from the
retainer (Figure 6-6 on page 110).
2 Invert the retainer and allow the O-ring to fall onto the benchtop.
If the O-ring does not fall out initially, tap the retainer on the benchtop to
dislodge the O-ring.
3 Drop the new O-ring into the retainer.
Make sure the O-ring is seated properly in the bottom of the retainer.
4 Reinstall the retainer and the outer sleeve.
5 Install a sample tube on the SIP to ensure that the outer sleeve has been
properly installed.
If the sleeve hits the bottom of the tube, loosen the retainer slightly and
push the sleeve up as far as it will go. Tighten the retainer.
Instrument hardware might be contaminated with biohazardous material.
Wear suitable protective clothing, eyewear, and gloves whenever cleaning
the instrument or replacing parts.
LSR2.book Page 112 Tuesday, April 25, 2006 3:34 PM
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