[en] Preparation status of the investigations of new tungsten crystal deflectors in the experiment on the Nuclotron beam extraction is discussed. The goniometer system to change fast silicon and tungsten crystals for their comparative study during the accelerator run was constructed. Possibility to use the Nuclotron correction magnets to create a local orbit bump for circulating particle guidance onto the crystal was shown. Background conditions for registration of deuterons extracted from the Nuclotron were analyzed. (author)