FIELD: mechanical engineering; operations at difficult-to-get at places. SUBSTANCE: set has two platform bodies 2 suspended from cable 2 and provided with manipulators 1. Platform bodies are hinge connected through one end. Platform bodies 2 have spring-loaded rollers 4 for engagement with walls of shaft 7. Manipulators 1 are installed for displacement along platform bodies 2 by means of wheels 16. EFFECT: enlarged operating capabilities. 4 dwg
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