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Preventive Maintenance
Fan Filter Inspection and Cleaning
Fan Filter
Inspection and
Cleaning
5-4
Model 43i Trace Level-Enhanced Instruction Manual
5. Check capillary for particulate deposits. Clean or replace as necessary.
6. Inspect O-ring for cuts or abrasion, and replace as necessary.
7. Replace capillary in the holder, making sure the O-ring is around the
capillary before inserting it into the body.
8. Finger-tighten the cap nut enough to ensure a tight seal.
9. Re-install the cover.
10. Connect the power cord and turn the instrument ON.
Under normal use, the filter over the instrument fan located on the rear
panel of the instrument should be cleaned and reconditioned at six-month
intervals. If the instrument is operated in excessively dirty surroundings,
this procedure should be instituted on a more frequent schedule. Use the
following procedure to inspect and clean the fan filter (Figure 5–1).
Equipment Damage Some internal components can be damaged by small
amounts of static electricity. A properly ground antistatic wrist strap must
be worn while handling any internal component.
1. Turn the instrument OFF and unplug the power cord.
2. Remove the fan guard from the fan.
3. Flush the filter with warm water and let dry (a clean, oil-free purge will
help the drying process) or blow the filters clean with compressed air.
4. Re-install the filter and fan guard.
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Thermo Fisher Scientific
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