First proof of concept for language independent learnstruments in special machinery assembly

International customers and employees form a cornerstone of today's special machinery industry. Qualifying assembly workers with different language and cultural background in this field appears to be challenging and cost intensive. An opportunity to deal with these challenges is the use of so called learnstruments. Contrary to teacher centered learning methods, learnstruments aim to automatically mediate their functionality to their user. In a previous attempt, a language independent learnstrument has been tested for transferring assembly knowledge with international students. Interactive 3D-PDFs proved to be more efficient than language independent picture based instructions and short instructional Utility-Films in relation to needed assembly time, errors made and displaying complicate relations and processes. Now the proof of concept has to be made for 3D-PDFs within the special machinery environment. A language independent 3D-PDF-learnstrument for the assembly of integrally geared compressors has been developed. Its acceptance by Field Service Engineers was evaluated during a special machinery assembly training.