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Siemens Surpresso - Bosch Benvenuto replace Grindstones

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  1. Siemens Surpresso - Bosch Benvenuto replace Grindstones, Siemens Surpresso - Bosch Benvenuto Brew Group Removal: step 1, image 1 of 3 Siemens Surpresso - Bosch Benvenuto replace Grindstones, Siemens Surpresso - Bosch Benvenuto Brew Group Removal: step 1, image 2 of 3 Siemens Surpresso - Bosch Benvenuto replace Grindstones, Siemens Surpresso - Bosch Benvenuto Brew Group Removal: step 1, image 3 of 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.

  2. Siemens Surpresso - Bosch Benvenuto replace Grindstones: step 2, image 1 of 3 Siemens Surpresso - Bosch Benvenuto replace Grindstones: step 2, image 2 of 3 Siemens Surpresso - Bosch Benvenuto replace Grindstones: step 2, image 3 of 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.

  3. Siemens Surpresso - Bosch Benvenuto replace Grindstones, Siemens Surpresso - Bosch Benvenuto back panel removal: step 3, image 1 of 2 Siemens Surpresso - Bosch Benvenuto replace Grindstones, Siemens Surpresso - Bosch Benvenuto back panel removal: step 3, image 2 of 2
    • Remove the seven Torx T10 screws on the rear panel.

    • Do not remove the back panel completely yet, the power switch is still connected.

    • Lift the back panel away.

    • Remove the two flat plugs from the inside of the power switch.

  4. Siemens Surpresso - Bosch Benvenuto replace Grindstones, Siemens Surpresso - Bosch Benvenuto top cover removal: step 4, image 1 of 3 Siemens Surpresso - Bosch Benvenuto replace Grindstones, Siemens Surpresso - Bosch Benvenuto top cover removal: step 4, image 2 of 3 Siemens Surpresso - Bosch Benvenuto replace Grindstones, Siemens Surpresso - Bosch Benvenuto top cover removal: step 4, image 3 of 3
    • The top cover is engaged with bayonets in several places. It must first be pushed back about 1 cm and then lifted away upwards.

    • Grasp the powder compartment cover firmly and pull it upwards out of its hinges. Otherwise it will be in the way of the top cover.

    • Pull the top cover back about 1 cm. If it sticks in front, you can help a little with plastic levers.

    • Lift the top cover away from the top.

  5. Siemens Surpresso - Bosch Benvenuto replace Grindstones, Siemens Surpresso - Bosch Benvenuto remove right side panel: step 5, image 1 of 1
    • The side panel is attached to the front edge with three bayonets. It must therefore be lifted out upward.

    • Grasp the side panel firmly at the rear edge and pull it backward and upward at the same time. It should come off quite easily.

    • When reassembling, make sure that the bayonets on the front edge engage properly.

  6. Siemens Surpresso - Bosch Benvenuto replace Grindstones, Siemens Surpresso - Bosch Benvenuto open the grinder: step 6, image 1 of 2 Siemens Surpresso - Bosch Benvenuto replace Grindstones, Siemens Surpresso - Bosch Benvenuto open the grinder: step 6, image 2 of 2
    • Pull the bean hopper back about 1 cm, then lift it off at an angle towards the back. Make sure that the axle of the grinder adjuster comes off. The container is still connected to the powder compartment lid cable. You don't need to detach it, just put the whole thing on top of the machine.

    • Picture two shows the opened grinder. When you reassemble it later, make sure that the axle of the grinder adjuster is in the right position. Also make sure that the groove on the bean hopper fits exactly over the marked lug and locks into place.

  7. Siemens Surpresso - Bosch Benvenuto replace Grindstones, Removing The Grinder Ring: step 7, image 1 of 3 Siemens Surpresso - Bosch Benvenuto replace Grindstones, Removing The Grinder Ring: step 7, image 2 of 3 Siemens Surpresso - Bosch Benvenuto replace Grindstones, Removing The Grinder Ring: step 7, image 3 of 3
    • Now the grinder is free. Again take a picture, then pull out the axis of the adjuster with moderate force.

    • This adjuster may not be present on some models.

    • Depending on the model you will find a silicon sealing on top of the grinder ring, remove it.

    • Watch the fabrication signs , here green. This alignment must be restored later. Now turn the great black gear about 90 degrees counterclockwise. The grinder ring is free and can be lifted off.

  8. Siemens Surpresso - Bosch Benvenuto replace Grindstones, The Grinder Cone: step 8, image 1 of 3 Siemens Surpresso - Bosch Benvenuto replace Grindstones, The Grinder Cone: step 8, image 2 of 3 Siemens Surpresso - Bosch Benvenuto replace Grindstones, The Grinder Cone: step 8, image 3 of 3
    • In the next step be very careful not to loose these three springs, balls and cartridges.

    • The grinding cone is fastened with a long Torx T20 screw. The screw head is often covered with remnants of coffee beans. Expose the head and turn the screw out counterclockwise.

    • Now the bean feeder (the small white snail) can be removed. The grinder cone and drive can now also be lifted up carefully.

  9. Siemens Surpresso - Bosch Benvenuto replace Grindstones, Cleaning: step 9, image 1 of 2 Siemens Surpresso - Bosch Benvenuto replace Grindstones, Cleaning: step 9, image 2 of 2
    • The grinder is usually filled with old, sticky coffee grounds. Clean everything carefully for an excellent coffee aroma.

    • Gently lift the felt ring around the drive shaft with a needle, then wipe it clean with a damp cloth. Do not attempt to wash it, as there is a risk that it will swell. When first used, turn it over with the clean side up.

    • Clean the inside of the grinder with a brush and damp cloth, and the blades with a dishwashing brush. Ensure it is properly dried before use.

  10. Siemens Surpresso - Bosch Benvenuto replace Grindstones, Change The Grinder Ring: step 10, image 1 of 3 Siemens Surpresso - Bosch Benvenuto replace Grindstones, Change The Grinder Ring: step 10, image 2 of 3 Siemens Surpresso - Bosch Benvenuto replace Grindstones, Change The Grinder Ring: step 10, image 3 of 3
    • Push both of the small latches alternately. Then the ring cover should come out.

    • Two clamps hold the grinder ring in its place, push them aside and it should come free.

    • Again clean everything. Press the new ring and cover in its place. With that the grinder ring is exchanged.

  11. Siemens Surpresso - Bosch Benvenuto replace Grindstones, Change The Grinder Cone: step 11, image 1 of 1
    • First insert the cleaned driver, then the three sleeves, springs and balls. Now fit the grinding cone on the three balls.

    • Then fit the auger, screw in central screws. When screwing in, push the cone downwards and make sure that everything meshes.

    • This screw turns into plastic. If it doesn't fit properly, the thread will be damaged. So first turn the screw counterclockwise until you feel that the first thread is engaged. Then tighten it turning clockwise.

  12. Siemens Surpresso - Bosch Benvenuto replace Grindstones, Reassembling: step 12, image 1 of 1
    • Insert grinding ring. The black gear is turned to the right again until the three marks are aligned. Then reinstall the adjuster drive shaft as it was originally.

    • The adjustment oft the new grinder burrs musst not necessarily be the same as the old ones. You can approximately find the mean position, which was marked before, by turning the outer ring as far as possible clockwise, then turning it fourteen clicks backwards.

    • It is a good idea to check if the grinder rotates freely. You can remove the meal hopper and look at the millstones from the side.

    • Then install the remaining parts in reverse order.

    • You can set the grinding degree nicely by placing an empty roll of toilet paper perpendicular to the open mill and filling it with a few coffee beans. Plug in the plug (be careful!), choose a cup of coffee and watch as the coffee grounds fall out of the grinder.

  13. Siemens Surpresso - Bosch Benvenuto replace Grindstones, Before - After: step 13, image 1 of 2 Siemens Surpresso - Bosch Benvenuto replace Grindstones, Before - After: step 13, image 2 of 2
    • These two pictures are no fake: Before repairing the grinder the coffee is thin and transparent. With new stones the coffee is strong and has a fine crema. The repair was a real success!

Conclusion

Follow these steps in reverse order to reassemble your device

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