DeLonghi ETAM upper brewing piston repair

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The piston is attached to the gray plastic part with a small ring retainer. Push the fuse to the side and store it well.

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Unscrew the two Phillips screws on the piston and remove the black cover.

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Gently pull off the plunger. Note the springs inside.

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Turn the piston over and remove the attachments:

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Thoroughly degrease and descale all parts. If possible, replace the O-rings. Re-grease them and reassemble the upper piston.