Patent ID: 7468094

Claim:
A method of repairing an electrostatic precipitator, said electrostatic precipitator including an enclosure defined by casing walls having a hot roof, an upper girder assembly, collecting electrodes, discharge electrodes and high voltage frames supported on the upper girder assembly, said method comprising the following steps: making a temporary support truss assembly having vertical truss members; supporting and fixing the temporary support truss assembly on the electrostatic precipitator above the casing walls; transferring the weight of the collecting electrodes, discharge electrodes and high voltage frames from the upper girder assembly of the electrostatic precipitator to the temporary support truss assembly; repairing or replacing the upper girder assembly and other components of the electrostatic precipitator as required; and transferring the weight of the collecting electrodes, discharge electrodes and high voltage frames from the temporary support truss assembly back to the repaired or replaced upper girder assembly of the electrostatic precipitator.