Customers today require smaller series of products. In manufacturing companies, this increases machine setup time, which is a waste. This paper presents a procedure for organizing and implementing a reduction of machine setup time. It is based on teamwork and uses the SMED method, which allows a gradual reduction of machine setup time to less than 10 minutes, and a continuous improvement system. The paper also presents the results of the organization and execution of a SMED workshop for the reduction of setup timesin a jet machine, as well as first suggestions for improvements that should significantly reduce machine setup time.