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Changeover checklist

A changeover checklist is the list a team works through every time a machine changes from one product to the next, so nothing is missing when the machine stops and nothing is forgotten when it restarts. Its first job is to get the external work ready while the machine still runs: tools, parts, material, documents and people, so the stop lasts only as long as the internal work. This one has 25 checks in four groups: before the stop, during the changeover, first-off and restart, and after. It complements the SMED changeover worksheet: the worksheet is for studying one changeover and redesigning it, the checklist is for running every changeover the agreed way and recording how it went. Page 1 is the checklist, with who did each check and when, and the times of the last and first good parts. Page 2 is the changeover record: planned against actual times for each part of the change, the problems, and the ideas to take to the SMED worksheet. The Excel version has the checklist with completion by group and a changeover log that compares each changeover time with your target, with a summary and a chart of the last 20 changeovers.

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Page 1 of the changeover checklist: fields for machine, change from and to, date, shift and leader, the times of the last and first good parts, and 25 numbered checks in four groups (before the stop, during the changeover, first-off and restart, after) with done, who, time and notes columns.
25 checks in 4 groupsWho and when for each checkLast and first good part timesPlanned vs actual timesProblems and SMED ideasChangeover log vs targetTrend chart

When to use it

When to use a changeover checklist

  • For every changeover on a machine where changeovers run long or vary from shift to shift.
  • After a SMED project, to hold the new sequence: the checklist becomes the standard.
  • When changeovers stall because a tool, a part or a document is missing.
  • To build a history of changeover times before setting a target.

How to fill it in

  1. 1

    Adapt the checks

    Cross out what does not apply and add the machine's own: its tools, its settings sheet, its first-off checks.

  2. 2

    Start before the stop

    Work through the first group while the machine still runs. Start it at a set time before the planned stop.

  3. 3

    Record the last good part

    Write the time of the last good part of the old run. The changeover time starts here.

  4. 4

    Run the change

    Follow the checks in order, including lockout where your procedure requires it, and note who did each one and when.

  5. 5

    Approve first-off and record the first good part

    The changeover ends at the first good part of the new run. Write the time and the changeover minutes.

  6. 6

    Reset and record

    Put the tooling away, restock the cart, and fill in the record on page 2 with the problems and ideas. Log the time in the Excel version.

What's on the checklist

The 25 checks on the changeover checklist

Four groups, from the prep done while the machine still runs to the reset after the restart. On the sheet each check has a done box, who did it and the time; cross out what does not apply and add the machine's own tools, settings and first-off checks.

Before the stop

External prep, done while the machine still runs

  1. 1Next job confirmed: product, quantity, drawing or recipe revision
  2. 2Tools for the change staged at the machine and checked complete
  3. 3Next die, mold, fixture or change parts at the machine, clean and checked
  4. 4Material, components and packaging for the next job at the line
  5. 5Settings sheet, setup instructions and first-off check sheet at the machine
  6. 6Gauges and measuring equipment at the machine and in calibration
  7. 7Everyone on the change told the stop time and their part in it
  8. 8Carts, lifting gear and a place for the outgoing tooling ready

During the changeover

Internal work, machine stopped

  1. 9Last good part of the old run recorded, with the time
  2. 10Machine stopped and locked out where the procedure requires it
  3. 11Old material, parts and paperwork cleared from the machine
  4. 12Old tooling removed and put on its cart or rack
  5. 13New tooling fitted and clamped to the setup instructions
  6. 14Settings entered from the settings sheet, not from memory
  7. 15Guards and safety devices back in place and checked
  8. 16Lockout removed by the person who applied it, area clear before the start

First-off and restart

Until the first good part

  1. 17First-off parts checked against the check sheet
  2. 18Adjustments written down, with the number of trial parts they took
  3. 19First-off approved by the person authorized to approve it
  4. 20First good part of the new run recorded, with the time

After the changeover

Reset, done while the machine runs

  1. 21Old tooling cleaned, checked and returned to its marked place
  2. 22Damaged or worn tooling tagged for repair
  3. 23Leftover material from the old job labeled and returned
  4. 24Area cleaned and the changeover cart restocked
  5. 25Changeover time and problems written on the changeover record

A filled-in example

Illustrative, not a benchmark

An example: four changeovers on one press against a 30-minute target (illustrative).

  • First changeover: 35 minutes, 5 over the target. Two checks were missed: the clamps were not at the machine and the first-off sheet was an old revision.
  • Second: 28 minutes, on target, with the tools staged before the stop.
  • Third: 25 minutes against a tighter 20-minute target set for an easier product change, so 5 over.
  • Fourth: 30 minutes, on target.

Over the four, the average changeover was (35 + 28 + 25 + 30) ÷ 4 = 29.5 minutes and two of the four met their target. The missing clamps went to the SMED worksheet as an idea: a dedicated clamp set on the changeover cart.

Common mistakes

  • Starting the prep when the machine stops

    Every check in the first group done after the stop adds to the changeover time.

  • Ticking without checking

    A ticked box with the wrong die at the machine is worse than no checklist. Check, then tick.

  • Skipping the record

    Without the times and the problems, nobody knows whether changeovers are getting better.

  • Never updating the checklist

    When a SMED idea changes the sequence, change the checklist the same week.

Download the template

Free to use: print it, copy it and edit it for your team. Enter your name and work email once to download.

Run this template in LeanSuite

In LeanSuite operators run each changeover as a digital checklist, prep tasks can be assigned automatically 30 minutes before the line stops, a missing tool is tagged from the same screen, and every checklist logs how long each step took.

FAQ

Changeover checklist: common questions

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