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In this video, the technician will show how to replace the drain valve in a coffee machine. The video is relevant for owners of Bosch Benvenuto and Siemens Surpresso coffee machines, as well as for Nivona and Melitta early series. Drain valve: https://service-cm.ru/shop/zapchasti-... Seal: https://service-cm.ru/shop/zapchasti-... Coffee oil remover: https://service-cm.ru/shop/sredstva-d... Lubricant: https://service-cm.ru/shop/sredstva-d... Coffee machine forum https://forum.service-cm.ru 00:00 What drain valve is the video about? 01:25 How to remove the drain valve 03:54 Cleaning the gearbox 06:21 Lubricating the gearbox 07:03 Installing the drain valve 11:03 Recommendations and conclusion