[en] VICKSI, a heavy ion accelerator installation at the Hahn-Meitner-Institut Berlin, was improved by adding an 8 MV-Tandem-Van de Graaff as second injector for the cyclotron, which is used alternatively with the first injector, a 6 MV single-stage-Van de Graaff. Comprehensive survey work was necessary in order to fit the Tandem into the ion optical system. This report documents the work done and discusses some problems arising during this period. The appendix compiles the results for the new beam line as well as some results for the older parts of the VICKSI installation. (orig./HSI)