Wassermann 174970, User Manual, Page: 12 / 20

10 Care and Maintenance
10.1 Cleaning
Disconnect the power plug before starting any maintenance work.
The identification plate has always to be kept in easily legible condition and has
not to be removed.
Remove external dirt from time to time with some form of cold cleaner.
Use only cold cleaners to avoid damaging the paintwork or removing the lettering.
Depending on the intensity of work and the degree of soiling, the viewing
window in the ceiling area (above) of the work area should be cleaned for
optimal illumination of the work area.
Viewing window
Sensors
The two sensors mounted outside on the front of the housing should be cleaned
at regular intervals to ensure trouble-free operation.
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