Device and method for carrying out maintenance work in a region of a plant delimited by a wall having at least two facing surfaces

Method for carrying out maintenance work in a region of a plant delimited by at least one wall (32) having at least two facing surfaces between which the maintenance work is carried out and which is accessible from an introductory region (31), comprising:

• using a remote-controlled robot (2) comprising a supporting part (2a) and at least one moving part (2b, 2c, 2d, 2e, 2f) that can move with respect to the supporting part (2a),
• fixing the supporting part (2a) of the robot is fixed to a support (3) secured to a remote-controlled motorized transport carriage (4),
• placing an assembly consisting of the robot (2), the support (3) and the transport carriage (4) in the introductory region (31) of the plant (32), in a position for accessing the maintenance region,
• moving the motorized transport means bearing the support (3) and the robot (2) by remote control of motorized means (23) of the transport means (4), between the introductory region (31) and the maintenance region (37),
• stopping the transport carriage (4) in the maintenance region (37),
• operating the clamping means (11, 13a, 13b) of the support (3) secured to the transport means (4) remotely between two bearing surfaces in the maintenance region (37), and
• initiating at least the start of the maintenance work in the maintenance region (37) using at least one moving part (2b, 2c, 2d, 2e, 2f) of the robot (2).