Replacing the gasket/seal of the brewing unit of Saeco XSmall

Written By: VauWeh
  • Comments: 6
Replacing the gasket/seal of the brewing unit of Saeco XSmall

Difficulty

Moderate

Steps

7

Time Required

No estimate

Introduction

The seals/gaskets of any brewing unit are under constant strain. Particularly the large O-Ring on the piston needs replacing from time to time. These instructions show how this is done.

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    • Open the hatch on the side panel and remove the brewing unit.

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    • The spout for the hot coffee is located on the top of the brewing unit. It is fastened with two screws. Underneath is the crema valve. It consists of a spring and a little glass ball. Make sure the spring is reinserted with the thin end touching the glass ball when re-assembling.

    • Remove the two Torx T10 screws on the crema valve.

    • Lift off the crema valve minding the spring and the glass ball.

    Can you tell me how the glass ball and spring are to be inserted? They fell off so I want to make sure if I put them back properly. Should the glass ball be in contact with the small piece with the 2 screws or the brewing unit (the latter makes more sense to me)

    mathieu assemat -

    Brewing piston - glas ball - spring - cover with screws. Pay attention to the spring: the thinner end shows towards the ball. The function of the ball is a “Aroma-Valve". The hot Coffee flows through the hole in the piston and has to bypass the spring-loaded ball, which therefore vibrates, thus producing the “crema".

    VauWeh -

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    • The upper piston is held in place in the frame with four locking pawls. Push down all four latches with a spudger, then remove the piston by pushing it downward.

    • If you want to replace the gasket, you can do this now and re-assemble the device and stop here. However, a general maintenance of the brewing unit is strongly recommended.

    • Unscrew the Torx T10 screw on the brewing sieve and remove it.

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    • There are three Torx T10 screws in deep blind holes that hold together the two parts of the brewing unit. Unscrew them and lift off the upper side panel.

    Hallo! Gibt es nur ein Gummi das man wechseln kann an der gesamten Brüheinheit?

    MFG! Ingo

    Kai Ingo Heidbüchel -

    Der große o-ring am Kolben ist natürlich besonders wichtig. Dann eventuell noch der kleine am Einlaufstutzen, ein zweiter an der Innenseite des Einlaufstutzens. Oben am Cremaventil ist ein etwas größerer, und ganz schwer zu erreichen der innen um die Kolbenstange. Aber wirklich wichtig sind die beiden erstgenannten. Man findet diverse Dichtungssets, z.B. das hier.

    VauWeh -

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    • Now you can disassemble the brewing unit into its three main parts: the brewing unit and the two side panels.

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    • You can push out the lower piston from the brewing unit if you snap the deflection lever out of its socket with a screw driver.

    • Clean all parts with very hot water and dishwasher liquid.

    • Grease all moving parts with food grade silicone fat. Dont forget the tracks in the side panels.

    Danke für die tolle Anleitung. Kannst Du auch noch Bilder hinzufügen, welche Dichtungen alle zunwechseln sind. Bei mir waren die schwarz und ich hatte am Ende ein Haufen Dichtungen aus dem Ersatzteilset über

    Mathias Hoffmann -

    Der untere Kolben hat eine Dichtung am Kolbenschaft, die (fast) nicht getauscht werden kann. Eventuell kann die Dichtung an der Befestigung zum Cremaventil (Bild 2) getauscht werden, die ist allerding drucklos und geht selten kaputt, genauso die an der Befestigung des oberen Brühsiebs und innen am Einlauf der Brüheinheit. Für die Brühgruppe im Wesentlichen Entwarnung. Aber: Wahrscheinlich liegen auch noch die stark belasteten Dichtungen am Supportventil ("Einlaufstutzen") dabei, die wirklich ausgetauscht und gefettet werden sollten. Siehe Gasket in the inlet valve

    VauWeh -

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    • Take this opportunity to carefully replace the two O-rings on the support valve. The larger one is at the top. These two seals are stressed during every brewing process. Therefore, lubricate them with food-safe silicone grease.

    • On some models, the support valve is covered. In this case, you must unscrew the cover first.

Conclusion

Apply these steps in reverse order to re-assemble the device.

Author

VauWeh

Member since: 19/10/15

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