If you change over from one thing to another, you stop doing one thing and start doing the other. We are gradually changing over to a completely metric system The two men swapped places, always extinguishing the light when they changed over. see also changeover
The task of assigning a production machine to perform a different operation - typically changing a press tool or jig, but could also mean changing the colour of paint in a paint plant or loading a new part program into a CNC lathe
A changeover is a change from one activity or system to another. He again called for a faster changeover to a market economy Right now we are in the changeover period between autumn and winter. a change from one activity, system, or way of working to another changeover (from sth) to sth
As used in manufacturing, the time from when the last "good" piece comes off of a machine until the first "good" piece of the next product is made on that machine Includes warm up, first piece inspection and adjustments Changeover times can be reduced through the use of S M E D