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.
What you need
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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.
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Clean all parts with very hot water and dishwasher liquid.
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Grease all moving parts with food grade silicone fat. Dont forget the tracks in the side panels.
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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.
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On some models, the support valve is covered. In this case, you must unscrew the cover first.
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Apply these steps in reverse order to re-assemble the device.
Apply these steps in reverse order to re-assemble the device.
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