This type is a very universal device for the construction site, but in this case the worker could have perhaps had an easier time of it if the company had invested in a specially-constructed device. Also, whether or not the application of the device for this type of job meets the requirements concerning normal working safety measures is a question we just cannot answer.
IIn such special cases one should use special constructions. The company Bayer Glasbau GmbH from Berlin, for instance, decided on a specially-constructed device to do their glazing work on a new building at the Humboldt University of Berlin.
Within 8 to 10 minutes, an approximately 4 x 3 m, 800 kg glass pane was set into the frame. So much time saved made the special investment worthwhile.