At first the loose dust and the superficial deposits were removed by using hot steam. The exposure could begin after this initial stage. The best method proved to be the mechanic removal of the layers with a scalpel, ultrasonic technologies and the use of rotational tools affixed to a flexible rail. In this manner it was possible to thin and partially remove the layers of corrosion in a controlled way.
The placement of the support construction
The mounting of the support construction
Securing the support construction to the Gate
Drilling of the base
Cutting of the base and lifting
Movement of the structure by means of chain hoists
View of the back of the monument