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M. Knockout Box
The knockout box (wall or counter-top model) has a padded bar
that lays across the opening of the box. By knocking the portafilter
against the padded bar, it knocks out the grounds and prevents the
edge of the portafilter from becoming damaged. Nicks and cuts on
the portafilter can damage the rubber gasket on the group head
that seals the portafilter basket.
N. Drain Tray
To remove the tray, lift the back of the tray first and then the front.
The tray should be emptied and cleaned daily (See Figure 1).
O. Cleaning and Maintenance
1. Backflushing
Remove the filter basket from the portafilter. Replace with a blank
filter (also referred to as a blind filter). Make sure the blank filter is
pressed all the way into the portafilter. Put about a TIP of a
teaspoon of Puly Caff detergent into the portafilter. Insert the
portafilter in the group head. With the blank filter, nothing will
dispense from the portafilter and the cleaning solution will escape
at the relief valve under the group head thereby cleaning the
brewing mechanism.
After the portafilter is placed on the machine, press the Brew/Stop
button again. Repeat this process 4 more times. Do NOT add
cleaning solutions each time, just repeat pushing the Brew/Stop
button for a FEW seconds duration each time. After the fifth time,
remove the portafilter and rinse it out to make sure there is no
remaining cleaning solution.
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