Jura Impressa S Grindstone Replacement
Introduction
Go to step 1To replace the millstones, the top cover must be removed. The replacement of millstones is basically the same for all Jura coffee makers. Step 5 refers to a different model series and must be skipped.
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Lift out the coffee tray
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Remove the lid sealing the coffee bean container
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Remove all of the coffee beans you can possibly remove.
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Pull the adjuster of the coffee bean grinder straight up
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Remove the four T15 Torx screws
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Now the grinder is free. Again take a picture, then pull out the axis of the adjuster with moderate force.
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Depending on the model you will find a silicon sealing on top of the grinder ring, remove it.
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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.
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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.
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Now the bean feeder (the small white snail) can be removed. The grinder cone and drive can now also be lifted up carefully.
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The grinder is usually filled with old, sticky coffee grounds. Clean everything carefully for an excellent coffee aroma.
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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.
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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.
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Push both of the small latches alternately. Then the ring cover should come out.
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Two clamps hold the grinder ring in its place, push them aside and it should come free.
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Again clean everything. Press the new ring and cover in its place. With that the grinder ring is exchanged.
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First insert the cleaned driver, then the three sleeves, springs and balls. Now fit the grinding cone on the three balls.
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Then fit the auger, screw in central screws. When screwing in, push the cone downwards and make sure that everything meshes.
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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.
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Then install the remaining parts in reverse order.
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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.
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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!
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To reassemble your device, follow these steps in reverse order
To reassemble your device, follow these steps in reverse order
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