The paper considers a complex of measures providing for the diagnosing and forecasting machine-tools technical state. The purpose of the measures consists in supporting the repair strategy based on the diagnostics of the actual technical state and forecasting its changes. The implementation of the suggested measures will allow works experts to manage quality of machine-tool repair by identifying the interconnection between accuracy parameters in parts machined and the accuracy parameters of machine-tools. Besides, the measures considered ensure the definition of defect initiations and parameter value changes possibilities in machine-tool geometrical accuracy which is necessary to further develop measures to eliminate the causes of the discrepancies in machine-tool accuracy. (C) 2016 Published by Elsevier Ltd.