Separate the work inside a format change
Removing format parts, making adjustments and returning to production are different steps. Recording the reason for waiting prevents a long changeover from being treated as a machine fault. It also makes the next run of the same format a better comparison.
Keep the operator’s reason list close to the actual tasks. Reviewing time placed under “other” can be more useful than adding dozens of codes. The aim is to capture a few useful facts at the right time.