April 8, 2011 HN FAQ Memo, Version 2.0 Page 38 of 108
Check tubes for coatings and repeat cleaning if necessary.
If tubes are cleaned efficient, jump to Step 5.
If coatings or clogs remain in the tubes, continue to Step 4.
Step.4 (Only if Step.3 didn‟t give efficient cleaning)
Disconnect the tube from the AI to the SI. Disconnect both at the
connection just after the milk pump in the SI and at the connection
just outside the AI (as in Step 3)
Inject a solution of hot water and 1/50 detergent (from SI) through
the tube until all milk residues and coatings are removed.
(use a big syringe and a short silicone tube connection for the
injection)
Check tube for
water flow from
mainline. HN1.
Check tube for
water flow from
mainline. HN2.
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