Pischalnikov, Y.M. Borissov, E. Khabiboulline, T.N. Yun, J.C. JACoW Geneva, Switzerland 978-3-95450-180-9 10.18429/JACoW-NAPAC2016-MOPOB33 English 143-145 MOPOB33 ion cavity cryomodule SRF operation Contribution to a conference proceedings 2017 2017-01 http://dx.doi.org/10.18429/JACoW-NAPAC2016-MOPOB33 https://jacow.org/napac2016/papers/mopob33.pdf The tuner design for LCLS-II has been thoroughly verified and fabricated for used in the LCLS-II prototype modules. This paper will present the lessons learned during the installation of these tuners for the prototype modules at FNAL, including installation procedures, best practices, and challenges encountered.