Every 1-2 Months
Replacing Shower Screen
➡
vimeo.com/20084652 (password: prebrewpressure)
The dispersion screen may become bent or damaged and should be replaced
periodically. Ideally, the mesh screen will sit firmly against the metal backing. If a
gap forms, replace the dispersion screen.
Parts and tools:
•
Replacement shower screen (part #46000-50070)
•
Flat-head screwdriver
Procedure:
1. Complete steps 1-3 of “General Group Cleaning” under “Grouphead”.
2. Discard old dispersion screen.
3. Install new screen and secure with the screw from step 1, taking care not
to over-tighten. Tighten the screw with your fingers until it is secure, then
rotate an additional 90 degrees (1/4 turn) with the screwdriver.
‣
CAUTION: failure to reinstall the dispersion screw and screen before
next use may cause the grouphead to clog with coffee particles. Do not
attempt to brew espresso before the dispersion screw and screen have
been correctly installed.
‣
For additional assistance with this procedure, refer to parts diagrams
on pages 58-74.
Replacing Portafilter Gasket
➡
vimeo.com/20084652 (password: prebrewpressure)
The portafilter gasket forms a seal between the portafilter and the grouphead,
preventing leaks. Over time, the portafilter gasket will become hard and lose its
seal. If it becomes difficult to insert the portafilter or if dripping occurs around the
portafilter body while brewing, replace the portafilter gasket.
Parts and tools:
•
Replacement 6mm portafilter gasket (part #46000-56091)
•
Flat-head screwdriver
•
Pick or awl
•
Cleaning brush or towel
Procedure:
1. Complete steps 1-3 of “General Group Cleaning” under “Grouphead”.
2. Use a pick or awl to remove the old portafilter gasket, pressing the pick
into the gasket and pulling downwards. If the gasket breaks into small
pieces, continue picking until the entire gasket has been removed.
3. Insert new portafilter gasket in such a way that the flat side touches the
grouphead and the round side is visible from the bottom. Gently press the
gasket into place, then use a screwdriver, pick, or awl to secure it in
place.
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