Replacing The Nebulizer/End Cap - PerkinElmer AVIO 500 Customer Hardware And Service Manual

Maintenance
270

Replacing the Nebulizer/End Cap

Before replacing the end cap:
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To replace the end cap:
1. Moisten the O-ring to make replacing the end cap easier. Make sure that the
two knurled screws that hold the end cap and the ring together are loose.
2. With one hand supporting the far end of the spray chamber, push and twist the
nebulizer/end cap onto the spray chamber so that the end cap seats firmly onto
the spray chamber.
3. Alternately hand-tighten the two knurled screws until the end cap ring is pulled
snug against the end cap.
4. If you have not already done so, connect the sample capillary tubing and
nebulizer argon tubing.
Check the end cap O-ring (Part No. 09902033) for nicks or cracks. If you
need to replace the O-ring, remove the two knurled screws and the end cap
ring. When placing the end cap ring back on the end cap, install it with the
flat side against the O-ring and the molding marks (small circular
indentations) against the end cap.
If you have just replaced the nebulizer tips, connect the sample capillary
tubing and the nebulizer argon tubing to the nebulizer and check the spray
pattern to make sure it is even. See <Xref>Checking the Spray Pattern on
page 260.