What should we train supervisors on first?

A brake parts plant sends its six shift in-charges to a two-day workshop in a city hotel. Topics include leadership styles, motivation theory and a team-building game with paper towers. On Monday, the night in-charge leaves without telling the morning crew that a drilling fixture is cracked. The morning in-charge finds out from the first rejected disc. Nothing from the hotel touched that moment.

Our overview of people issues in parts plants sets the order. Teach the jobs repeated every rotation first, since those set the day's count: passing the line to the next crew, correcting and praising, chasing absentees and cooling tempers. Quality and safety talks follow. Sessions should be brief and hands-on. What follows explains each piece and the questions owners raise afterwards.

They happen on every shift, several times. A bad handover repeats a fault on the next shift. Feedback skipped lets a careless habit set. A clumsy absence call drives a good operator to the plant across the road. An unresolved quarrel splits a crew. None of these waits for an annual programme.

• Handover. The five-minute overlap at the machine, not in the office. Machine status, die or mould condition, pending holds, absentees for the next shift and any safety worry, written in the handover book and said aloud.
• Feedback at the station. Two sentences, said privately and soon: what was seen, what is needed. Praise in public for a clean changeover or a caught defect.
• Absence. Calling absentees early in the shift, a short return-to-work chat, the same rules for friends and strangers, and spotting patterns after pay day or festivals.
• Small quarrels. Overtime disputes, a shared tool, night shift blamed for a dirty die. Hear both sides away from the line, decide, record and move on.

• Moulding hall handover: mould temperatures, hot runner alarms, resin lot and dryer level passed to the next crew.
• Harness board feedback: a clip fitted the wrong way round or taping overlap too short, raised quietly at the board.
• Fastener sorting absence: piece-rate sorters missing on wage-credit Monday, called before nine with a fair, identical script.
• Press shop quarrel: who clears the scrap chute and who gets the newer press, settled once and written on the board.
• Grinding cell quality talk: an offset changed without an entry, discussed as a process gap before anyone is named.
• EV pack line safety talk: insulated gloves pulled off for dexterity, challenged calmly and followed up with better-fitting gloves.

Build role-plays from whichever of these your plant runs. Generic scenarios fall flat with experienced crews.

Once the daily four are steady, add two harder talks. The quality conversation covers stopping a line calmly, quarantining suspect stock and talking to an operator after an escape without turning it into blame. The safety conversation covers challenging a bypassed guard or a tied-down two-hand control, and listening properly when someone reports a near miss. Both rely on the feedback skills from the first module.

1. 1

   Run them where shifts meet

   Ninety minutes, on site, with in-charges from both shifts present. No hotel, no full day.

2. 2

   Use the plant's own incidents

   The cracked fixture nobody mentioned, the quarrel over Sunday overtime, last month's late absentee call. Real cases make the practice real.

3. 3

   Practise, do not lecture

   Most of the time goes on role-play in pairs, with the trainer and a peer giving feedback.

4. 4

   Set a practice task

   Each in-charge applies the skill on their next three shifts and notes what happened.

5. 5

   Check on the floor within a week

   Within a week, HR or the plant head reads handover books, watches one corrective talk and asks operators how absence calls felt.

Topic: for example, handover at the machine.
Real case: a recent handover failure from this plant, told briefly.
Model: the trainer or a strong in-charge demonstrates a good handover at a press.
Practice: pairs role-play two handovers each, with a checklist.
Practice task: three handovers on the next shifts, noted in the book.
Floor check: plant head reads the handover book within a week.
Retrain if needed: one short follow-up for those who struggled.

Pick someone who knows the floor. That could be an experienced plant head, or a senior in-charge supported by a trainer. An outside facilitator works too, after a few shifts on the line. Avoid trainers who cannot discuss a die change or a rejection tag. In-charges switch off quickly when examples sound like an office.

Look at behaviour on the floor, not session feedback forms. Are handover books complete? Are repeat faults across shifts falling? Do absence calls happen early? Are quarrels escalating less? Read these monthly for a quarter. Floor-based training of this kind is what our programme for shift managers delivers. The full route from operator to in-charge sits in our first-time supervisor guide, and for freeing their time first, see when supervisors carry too much. The feedback skills module can support the second session.