Method for maintaining cooling assembly of metallurgical furnace

The invention relates to a method for maintaining a cooling assembly (1) of a metallurgical furnace, said cooling assembly (1) comprising: a cooling plate (2) arranged inside a furnace shell (20) of the metallurgical furnace; -a cooling tube (4) which traverses a casing opening (20.1) in the furnace casing (20) and is connected to the cooling plate (2); and-a compensator (6) arranged around the cooling tube (4) for forming a seal between the cooling tube (4) and the furnace shell (20). In order to provide measures to facilitate maintenance of a cooling system of a metallurgical furnace, the invention provides a method comprising performing at least one cutting operation with a cutting device (30, 40) comprising a clamp (31, 41) and a cutting tool (36, 45) movably connected to the clamp (31, 41) for a guided movement relative to the clamp (31, 41), the clamp (31, 41) is mounted to the cooling tube (4), whereby the cutting device (30, 40) is aligned with respect to the cooling tube (4) and the cutting tool (36,