Method and device for adjusting the rotor position in a gas turbine or steam turbine

A method for adjusting the position of a rotor of a turbine, the turbine comprising a first casing and a second casing wherein the second casing, in a bearing region of the rotor, has a fixed relative position, with regard to a rotor end, and is screwed to the first casing via a threaded connection, the method comprising:

• releasing the threaded connection;
• adjusting the relative position of the rotor to the first casing, which encloses the rotor in a flow region, by the relative position of the second casing to the first casing being adjusted;
• refastening the threaded connection,
• wherein the relative position of the second casing to the first casing is adjusted via first wedge elements, wherein the first wedge elements fix the position of the first casing in a vertical direction relative to the second casing and allow the position of the first casing to be displaced in a horizontal direction, and the threaded connection is refastened, and
• wherein at least one second wedge element is provided, the at least one second wedge element fixes the position of the first casing in the horizontal direction relative to the second casing and allows the position of the first casing to be displaced in the horizontal direction, to adjust the position in the horizontal direction, after releasing the threaded connection, the first casing is preferably positioned using a hydraulic tool, and shim plates, which are provided on the sides of the second wedge element, are exchanged.