Bottling line

The original panel had been extended three times in twelve years by three different contractors. None of the drawings matched what was inside it, half the ferrules had been cut off, and diagnosing a stop meant tracing wires by hand with the line down.

The machines were fine. The panel had become the risk.

The line ran five days a week and the only maintenance window was Saturday. There was no version of this job that involved taking the plant apart and working it out as we went.

So we didn’t. The new panel was built and tested on the bench, and the changeover was planned across three windows with a defined point of no return in each one.

Nothing on the production side was touched. A new enclosure was built and wired off site, ferruled and labelled to a drawing that was updated as the work happened rather than afterwards.

Monitoring went in at motor level, so a machine drawing more than it used to now says so before it fails rather than after.

Every changeover weekend ended with the line running and the drawings correct. Both of those were treated as the same deliverable.

A stop names itself instead of starting a search. Maintenance open the door, read the label, and go to the right place.

Reported outcome: [PLACEHOLDER — reduction in unplanned downtime, once a full year is on record].