Pre-treatment method of filling device for filling liquid pharmaceuticals to container and filling device

The present invention relates to a pre-treatment method of a filling device for filling liquid pharmaceuticals to a container (1) and a filling device, wherein the filling device (100) has a first filling device (10) for filling a main filling amount and a second filling device (20) and also a first weighing device (31), the second filling device (20) referring to the supplementary filling amount which is a balance between the main filling amount and a main amount, in which a pre-treatment stage (40) is conducted prior to a production stage (60) whereby the container (1) is filled by means of the two filling devices (10,20), the pre-treatment stage refers to filling the main filling amount measurement to the container (1) by only the second filling device (20) and in which the pre-treatment stage (40) in articularly for removing air bubbles from the product path of the second filling device (20).