Indretning og fremgangsmåde til at stille to komponenter af en vindmølle på linje

The invention relates to a method and to an arrangement to align a first component (C1) and a second component (C2). The first component (C1) comprises guiding means (GMC1) and the second component (C2) comprises guiding means (CMC2), while these guiding means are prepared and arranged to interact with each other. The guiding means (GMC1, GMC2) of the components (C1, C2) are prepared and arranged to align the components (C1, C2) to each other while the components (C1, C2) are moved towards each other for their final connection. The guiding means (GMC1) of the first component (C1) comprises an optical camera system (OCS), which is used to monitor the change of the position of the guiding means (GMC2) of the second component (C2) in reference to the position of the guiding means (GMC1) of the first component. The optical camera system (OCS) is connected with a remote display (DIS) enabling working personnel to direct the movement of the components (C1, C2) based on the monitored position changes.