Turbine part replacing apparatus for moving a combustor and/or a sequential liner of an industrial gas turbine from and to a mounting port of the gas turbine, the apparatus comprising: a mobile frame with a moving mechanism for substantially horizontal translation motion (b,g) on the ground; a vertically extendable arm attached to and extending from said mobile frame; and a carriage attached to said extendable arm such that the carriage may be moved vertically with respect to the mobile frame; wherein the turbine part replacing apparatus is adapted for receiving said combustor and/or sequential liner in said carriage and for vertically moving said received combustor and/or sequential liner by means of said extendable arm from and to said mounting port; the carriage comprising a first pivoting mechanism, wherein the carriage is attached to the extendable arm such as to be pivotable along a first pivot motion (c) about a first pivot axis by means of said first pivot mechanism, the first pivot axis extending horizontally and perpendicular to the longitudinal direction of the carriage; the carriage comprising a sledge for placement of the combustor on the carriage, the sledge being arranged on a first surface of the carriage through a sliding device (16;18) such that the sledge is moveable in a sliding motion (h;e) relative to said carriage along a longitudinal direction of the carriage and/or perpendicularly to the longitudinal direction of the carriage; the apparatus being characterized in that the first surface of the carriage is concave such that a sliding motion of the sledge on the first surface perpendicular to the longitudinal direction of the carriage is a second pivot motion (e) about a second pivot axis parallel to the longitudinal direction of the carriage, wherein the sliding device (16, 18) comprises a second sliding mechanism for shifting said carriage on the first surface along the second pivot motion (e). a mobile frame with a moving mechanism for substantially horizontal translation motion (b,g) on the ground; a vertically extendable arm attached to and extending from said mobile frame; and a carriage attached to said extendable arm such that the carriage may be moved vertically with respect to the mobile frame; wherein the turbine part replacing apparatus is adapted for receiving said combustor and/or sequential liner in said carriage and for vertically moving said received combustor and/or sequential liner by means of said extendable arm from and to said mounting port; the carriage comprising a first pivoting mechanism, wherein the carriage is attached to the extendable arm such as to be pivotable along a first pivot motion (c) about a first pivot axis by means of said first pivot mechanism, the first pivot axis extending horizontally and perpendicular to the longitudinal direction of the carriage; the carriage comprising a sledge for placement of the combustor on the carriage, the sledge being arranged on a first surface of the carriage through a sliding device (16;18) such that the sledge is moveable in a sliding motion (h;e) relative to said carriage along a longitudinal direction of the carriage and/or perpendicularly to the longitudinal direction of the carriage; the apparatus being characterized in that the first surface of the carriage is concave such that a sliding motion of the sledge on the first surface perpendicular to the longitudinal direction of the carriage is a second pivot motion (e) about a second pivot axis parallel to the longitudinal direction of the carriage, wherein the sliding device (16, 18) comprises a second sliding mechanism for shifting said carriage on the first surface along the second pivot motion (e).