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Siemens Surpresso - Bosch Benvenuto brewing unit maintenance

소개

The gaskets of the brewing unit are heavily used and should be replaced from time to time.

This brewing unit is identical to units of other brands, e.g. Nivona, Bosch, Melitta.

Note: the pictures show the newer version of the brewing unit with the large release lever. There are hardly any differences for the repair.

필요한 것

  1. Siemens Surpresso - Bosch Benvenuto brewing unit maintenance, Siemens Surpresso - Bosch Benvenuto Brew Group Removal: 1 단계, 이미지 1/3 Siemens Surpresso - Bosch Benvenuto brewing unit maintenance, Siemens Surpresso - Bosch Benvenuto Brew Group Removal: 1 단계, 이미지 2/3 Siemens Surpresso - Bosch Benvenuto brewing unit maintenance, Siemens Surpresso - Bosch Benvenuto Brew Group Removal: 1 단계, 이미지 3/3

    • Never forget: Pull the power plug!

    • Remove all attachments such as water reservoir, coffee compartment lid, trester drawer.

    • Remove all coffee beans from the bean hopper.

    • Open the side flap.

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  2. Siemens Surpresso - Bosch Benvenuto brewing unit maintenance: 2 단계, 이미지 1/3 Siemens Surpresso - Bosch Benvenuto brewing unit maintenance: 2 단계, 이미지 2/3 Siemens Surpresso - Bosch Benvenuto brewing unit maintenance: 2 단계, 이미지 3/3

    • Loosen the three rubber caps on the brew group.

    • Using a strong flat-blade screwdriver, adjust the three plastic slots underneath so that the "unlocked" position is indicated.

    • Note: with the newer version of the brew group, only one lever needs to be flipped.

    • Pull out the brew group. If it is stuck, pull firmly and evenly, but with feeling, preferably at the bottom right.

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  3. Siemens Surpresso - Bosch Benvenuto brewing unit maintenance, Brewing Unit maintenance: 3 단계, 이미지 1/1

    • Remove the brewing unit from the device.

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  4. Siemens Surpresso - Bosch Benvenuto brewing unit maintenance: 4 단계, 이미지 1/1

    • Take off the cap covering the screwhole in one corner. The cap ensures a better fit of the brewing unit.

    • Note: some versions of the brewing unit do not have this cap.

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  6. Siemens Surpresso - Bosch Benvenuto brewing unit maintenance: 5 단계, 이미지 1/1

    • Remove the single black Torx T10 screw fixing the opening handle.

    • Using a certain amount of force pull the opening handle out of the guidance near the red button.

    • Rotate the handle 90 degrees counterclockwise, then lift it off.

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  7. Siemens Surpresso - Bosch Benvenuto brewing unit maintenance: 6 단계, 이미지 1/2 Siemens Surpresso - Bosch Benvenuto brewing unit maintenance: 6 단계, 이미지 2/2

    • Unclip the upper protection panel, then remove it by lifting it up.

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  8. Siemens Surpresso - Bosch Benvenuto brewing unit maintenance: 7 단계, 이미지 1/1

    • Remove six Torx T15 screws holding together the brewing unit. The screwholes are rather deep.

    • Lift the upper half of the brewing unit up.

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  9. Siemens Surpresso - Bosch Benvenuto brewing unit maintenance: 8 단계, 이미지 1/2 Siemens Surpresso - Bosch Benvenuto brewing unit maintenance: 8 단계, 이미지 2/2

    • The inside of the brewing unit ist exposed. You can see:

    • The upper piston and its gasket.

    • The funnel for the coffee grounds

    • The lower piston.

    • The hold-down clamp

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  10. Siemens Surpresso - Bosch Benvenuto brewing unit maintenance: 9 단계, 이미지 1/3 Siemens Surpresso - Bosch Benvenuto brewing unit maintenance: 9 단계, 이미지 2/3 Siemens Surpresso - Bosch Benvenuto brewing unit maintenance: 9 단계, 이미지 3/3

    • Remove the funnel.

    • Rotate the lower piston counterclockwise and lift it off.

    • Lift off the upper piston. There ist still a hose connecting the piston to the coffee outlet. In top there ist also the downholder of the brewing unit.

    • Sometimes this downholder ist torn and the coffee leaks out of the brewing unit and does not fill your cup. Inspect the downholder for cracks. You can fix this using a special repair kit.

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  11. Siemens Surpresso - Bosch Benvenuto brewing unit maintenance: 10 단계, 이미지 1/3 Siemens Surpresso - Bosch Benvenuto brewing unit maintenance: 10 단계, 이미지 2/3 Siemens Surpresso - Bosch Benvenuto brewing unit maintenance: 10 단계, 이미지 3/3

    • Remove the hose connecting the upper piston and the coffee outlet.

    • Remove the upper piston.

    • Remove the Torx T20 screw from the screen of the upper piston.

    • Take off the cover of the gasket and the gasket.

    • Replace the gaskets of the upper piston, the coffee outlet and water connector.

    • The lip of the piston gasket must point towards the pressure, i.e. downwards.

    • Clean thoroughly all parts. Use food-proof silicone grease to lubricate the gaskets.

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  12. Siemens Surpresso - Bosch Benvenuto brewing unit maintenance: 11 단계, 이미지 1/1

    • The crema-valve is located in the interior of the upper piston. It is fixed by two Torx T10 screws.

    • Remove both screws. Lift off the valve. Inspect it and clean it.

    • Note: there is another gasket on the shaft of the lower piston. Replacing it is difficult.

    • Lubricate all sliding parts with food-proof silicone grease. Verify the smooth operating of the brewing unit.

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결론

To reassemble your device, follow these directions in reverse order.

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