Figure 5-1. Inspecting And Replacing The Capillaries - Thermo Scientific 42i Instruction Manual

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3. Locate the capillary holders. See
Figure 5–1. Inspecting and Replacing the Capillaries
4. Remove the Cajon® fitting(s) from the reaction chamber body using a
5/8-inch wrench being careful not to lose the ferrule or O-ring.
5. Remove the glass capillaries, ferrule, and O-ring. Inspect O-ring for
cuts or abrasion, and replace as necessary.
6. Check capillary for particulate deposits. Clean or replace as necessary.
7. Replace capillary in reaction chamber body, making sure the O-ring is
around the capillary before inserting it into the body.
8. Replace Cajon® fitting. Note that the Cajon® fitting should be
tightened slightly more than hand tight.
9. Reconnect tubing to top of fittings, being careful to insert ferrule and
O-ring properly, and tighten knurled nut finger tight.
10. Re-install the cover.
Figure 5–1
Cajon Fitting
Capillary
Capillary O-Ring
Reaction Chamber Front
Model 42i Trace Level Instruction Manual
Preventative Maintenance
Capillaries Inspection and Replacement
and Figure 7–2.
5-3