12 Before you slide the brew group back into the machine, make sure thetwo reference signs on the side match. If they do not match, perform thefollowing step:- Make sure the lever is in contact with the base of the brew group.13 Make sure that the locking hook of the brew group is in the correctposition.- To position the hook correctly, push it upwards until it is in uppermostposition.- The hook is not correctly positioned if it is still in bottommost position.14 Slide the brew group back into the machine along the guiding rails on thesides until it locks into position with a click.Caution: Do not press the PUSH button.15 Close the service door.Monthly lubrication of the brew groupLubricate the brew group after the machine has brewed 500 cups of coffeeor once a month.1 Switch off the machine and unplug it.2 Remove the brew group and rinse it under a lukewarm tap as describedin section 'Weekly cleaning of the brew group'.23English