Arrangement to align a part of a wind turbine to a counterpart, - whereby the part of the wind turbine and its counterpart are approached in a main direction of approach, to be connected, - whereby the arrangement comprises a first and a second alignment tool, - whereby the alignment tools comprise a first area to be connected to the part of the wind turbine, and a second area that protrudes over the physical dimensions of the part of the wind turbine mainly in the main direction of approach, - whereby the second area is arranged and prepared in a way to abut on the counterpart, in a direction perpendicular to the main direction of approach, as an arrester to stop and/or hinder a movement of the part of the wind turbine in respect to the counterpart during the alignment, - whereby the first alignment tool stops and/or hinders a movement in a first direction, so that the position of the part of the wind turbine in respect to the counterpart is fixed in a first direction, - whereby the second alignment tool stops and/or hinders a movement in a second direction, so that the position of the part of the wind turbine in respect to the counterpart is fixed in a second direction, - whereby the arrangement comprises at least one guide pin unit, that interacts with a hole in the counterpart, to arrest the rotational position of the part of the wind turbine in respect to the counterpart, after the rotational position of the part of the wind turbine was aligned to the counterpart, - whereby the alignment tool comprises a base and an arm, and that the base comprises the first area and the arm comprises the second area, characterized in that the arm is connected to the base by a connection pin or a bolt, and a shear pin, so that the connection withstands forces that act on the arm up to a certain predetermined value, and allows the arm to yield, when the predetermined force is exceeded. - whereby the part of the wind turbine and its counterpart are approached in a main direction of approach, to be connected, - whereby the arrangement comprises a first and a second alignment tool, - whereby the alignment tools comprise a first area to be connected to the part of the wind turbine, and a second area that protrudes over the physical dimensions of the part of the wind turbine mainly in the main direction of approach, - whereby the second area is arranged and prepared in a way to abut on the counterpart, in a direction perpendicular to the main direction of approach, as an arrester to stop and/or hinder a movement of the part of the wind turbine in respect to the counterpart during the alignment, - whereby the first alignment tool stops and/or hinders a movement in a first direction, so that the position of the part of the wind turbine in respect to the counterpart is fixed in a first direction, - whereby the second alignment tool stops and/or hinders a movement in a second direction, so that the position of the part of the wind turbine in respect to the counterpart is fixed in a second direction, - whereby the arrangement comprises at least one guide pin unit, that interacts with a hole in the counterpart, to arrest the rotational position of the part of the wind turbine in respect to the counterpart, after the rotational position of the part of the wind turbine was aligned to the counterpart, - whereby the alignment tool comprises a base and an arm, and that the base comprises the first area and the arm comprises the second area, characterized in that the arm is connected to the base by a connection pin or a bolt, and a shear pin, so that the connection withstands forces that act on the arm up to a certain predetermined value, and allows the arm to yield, when the predetermined force is exceeded.