The video above is from Lean Strategies International LLC's Quick Changeover with REDUCE Course.
A function check or functional test will help you measure the ability of your equipment to perform and work as it should.
It is suggested that function checks are done before and after a run when you first start conducting the function check. This will ensure that the items you need to work are working properly. Once you have your function checks occuring on a schedule, many organizations will perform the check immediately after a run. This way if tooling, materials or information needs to be corrected it can be done well in advance of the next run and stored safely so that it is in working order the next time it is used. If it is not practical for you to advance to a functional test immediately after the setup is broken, then ensure they are done well in advance of your changeover so as to minimize downtime.
Function checks are oftentimes developed using checklists, process flow diagrams or decision maps. These tools help standardize the function check and will allow you to develop a process that could drastically improve your setup and changeover times.
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