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Gasket and shower screen

What is under the group

From Quick Mill's parts list, bottom up: the group gasket (35.10.30) in the ring; the flat shower screen (D001,8); behind it the diffuser flange (FLA6075) with an O-ring (OR3187); all held by one centre screw, an M5 × 16 countersunk hex socket (VITTSPEI5X16) that takes a 3 mm hex key (importer's manual).

The importer replaces the gasket yearly, which it says makes the job much easier.

Gasket and screen out

The importer's method.

  1. Switch off, unplug and let the group cool.
  2. Pierce the gasket with an awl or ice pick and prise it out.
  3. Pick out every remaining piece.
  4. Undo the centre screw with a 3 mm hex key.
  5. Take down the screen and the diffuser behind it.
  6. Soak the screen in hot water with espresso machine cleaner, or replace it.

Fit the new gasket

The importer's method.

  1. Refit the diffuser and screen with the centre screw.
  2. Press the new gasket into the ring by hand, bevelled side up.
  3. Push it home with the portafilter, with no basket in it.
  4. Then lock the portafilter in with the basket fitted.

Quick Mill Silvano Evo: every job