Repeated teaching changes after a finger replacement

The replacement record names a spare set, but the drawer contains two nearly identical sets. Maintenance has isolated the cell and is comparing the installed identifiers with the drawing.

Photographs of the installed parts and their contact faces may help later, especially if the fingers are removed. The drawer is already offering more candidates than the records intended.

The installed set is correct. They found a thin burr beneath one locating shoulder, which prevented full seating. It has been dealt with under the maintenance procedure; the setup still needs verification.

Use an agreed reference for that verification and retain the teaching history. Some later point changes may have compensated for the incorrectly seated finger. The mechanical correction does not tell you which saved version is appropriate.

Don't just load the oldest file and hope. Check what else changed since then (tray, part variant, tool data). An old program can be old for several reasons.

Agreed. I meant preserve the versions for review, not select one by age. The responsible person needs to verify the intended combination.

Who is checking the combination, and who tells the next shift which one they may use? I have seen this left between maintenance and production before.

Our controls lead owns verification, with maintenance confirming the tool assembly and production accepting the handover. We have kept the job unavailable while they complete that work.

Does the operator screen make that clear? A saved program that still opens can look ready to use, even when the handover folder says otherwise.

Also identify those similar spare sets in stores before the next replacement. This time the set was correct, but a drawer requiring detective work is still a poor spare-parts system.

The screen status and stores issue are both worth closing. Neither changes what caused this occurrence, but both affect how the next person handles it.

Verification is complete and the job is back under supervised use with the approved setup recorded. Stores has separated the spare sets. No skew seen in the checked runs, though we are still monitoring the original interruption rate.