Abstract: Method for replacing, inspecting, and/or repairing components in front bearing region of gas turbine, the gas turbine having at least one fan module, housing, low-pressure system, and high-pressure system, the low-pressure system having low-pressure compressor, low-pressure turbine, connecting shaft, stub shaft, and an N1 shaft connected to the low-pressure compressor via the stub shaft and the connecting shaft, the connecting shaft supported in the housing via first bearing unit, and the stub shaft supported in the housing via second bearing unit, the method including dismounting the fan module, fixing the N1 shaft in an axial direction relative to the housing using fixing device, and dismounting the stub shaft using guide device, the orientation of which relative to the gas turbine in at least one spatial direction is determined by a component of the remaining gas turbine, this taking place after fixing the N1 shaft and after dismounting the fan module.

Abstract: Disassembly method for gas turbines (11) for replacing and/or inspecting and/or repairing components arranged in a front bearing region (5) of the gas turbine (11), the gas turbine (11) comprising at least one fan module (1), a gas turbine housing, a low-pressure system and a high-pressure system, the low-pressure system comprising a low-pressure compressor (4), a low-pressure turbine (9), a connecting shaft (13), a stub shaft (8) and an N1 shaft (10), the N1 shaft (10) being connected to the low-pressure compressor (4) via the stub shaft (8) and the connecting shaft (1), the connecting shaft (13) being supported in the gas turbine housing via a first bearing unit (6), and the stub shaft (8) being supported in the gas turbine housing via a second bearing unit (7), wherein the disassembly method comprises at least the steps of: a) dismounting the fan module (1), and b) fixing the N1 shaft (10) in an axial direction relative to the gas turbine housing using a fixing device (14), and c) dismounting the stub