General
In case of maintenance and repair, heat exchangers, brakes, compressors etc. have to be cleaned underneath the trains.
Previous technique
Frequently, high-pressure cleaners are used, with the following problems
- High water consumption
- Splash effects and damage; water is spread all around
- The traction unit is positioned at an angle, i.e. the heat exchangers are not fully accessible.
- Certain parts such as heat exchangers can be bent or even irreparably destroyed by high pressure.