April 8, 2011 HN FAQ Memo, Version 2.0 Page 36 of 108
3.2 Analyzer Instrument (AI).
3.2.1 Procedure for complete cleaning of milk transport system
between SI and AI.
Description: Tools/spareparts
Step.1
Empty the AI for all sticks. (Menu 5.4 change to service and menu
4.3.6 empty storage). Keep the sticks in an airtight container
together with one or two desiccant bags, until they can be loaded
again.
Open the AI and look for visible milk residues in the tubes. Look for
signs of leakage.
Open cable trunk and inspect the tubing between the SI and AI for
coatings, clogs and ensure it is free from sharp bends.
Step.2
Remove dosage needle for cleaning.
Check both milk and diluent passages for clogs. Clean with
detergent solution and compressed air (if available). Cleaning wire
can be used in the milk passage, but if the diluent passage can‟t be
cleaned the needle has to be replaced.
Needle will be mounted later in the procedure.
Cleaning wire in milk passage
Holes for diluent
passage.
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