Put this question to any TPM consultancy and the answer arrives with a caveat. Should operators be responsible for machine care? Yes, but not for all of it, and not without support. For decades the factory split was simple: operators ran the machine, maintenance fixed it. Autonomous maintenance challenges that line, not by turning operators into technicians, but by handing them the basic care that keeps a machine healthy day to day. Done well, it catches small faults before they grow. Done badly, it blurs responsibility and frustrates everyone. The difference lies in where you draw the boundary and how you prepare people to work within it.
In short: Yes, operators should take on routine machine care, within clear limits. Autonomous maintenance, known in TPM as jishu hozen, gives operators cleaning, lubrication, inspection and early fault detection, while skilled technicians keep complex diagnosis and repair. Reliability rises when training, standards and firm role boundaries back the shift up.
What is autonomous maintenance?
Autonomous maintenance is the TPM practice of training machine operators to carry out basic upkeep on the equipment they run every day. Its Japanese name, jishu hozen, means self maintenance. The point is not to replace the maintenance department but to free it. When operators handle cleaning, lubrication and routine inspection, skilled technicians stop spending their days on small, repetitive tasks and can focus on the complex work only they can do. It is one of the foundational pillars of TPM, and usually the first one a plant builds.
Should operators really be responsible for machine care?
Yes, for the basics, because the operator is closest to the machine and notices change first. Nobody knows the normal sound, feel and rhythm of a line better than the person who stands at it all shift. A new rattle, a warm panel, a faint smell of burning, an operator registers these long before a scheduled inspection would. Autonomous maintenance turns that everyday awareness into a defined set of tasks, so the knowledge is acted on rather than lost. The responsibility is real, but it is bounded, and that boundary is what makes it work.
Where do operator duties end and maintenance begins?
Operator duties cover the routine, low-risk care that keeps a machine in good condition. The maintenance team owns the skilled, higher-risk work. A clear split prevents both gaps and overlaps. A simple way to picture it:
| Operators typically own | Maintenance typically owns |
|---|---|
| Daily cleaning and inspection | Breakdown diagnosis and repair |
| Checking and topping up lubrication | Component replacement and overhaul |
| Tightening accessible fasteners | Work behind guards or on live systems |
| Logging abnormalities with tags | Precision alignment and calibration |
| Simple, safe adjustments | Anything needing special tools or training |
The line will shift as operators gain skill, but it should always be written down, never assumed.
Why is cleaning the first step, not just housekeeping?
Because in autonomous maintenance, cleaning is inspection. When an operator wipes down a machine by hand, they are forced to touch every surface, and that is when a hairline crack, a weeping seal, a loose bolt or a worn belt reveals itself. The first step of autonomous maintenance is a deep initial clean for exactly this reason. It also exposes the sources of contamination, the leaks and swarf that made the machine dirty in the first place, so the team can stop the mess at source rather than cleaning the same spot forever.
What about lubrication and daily checks?
Lubrication and daily checks are the core routines operators own, usually captured as a short CIL standard, which stands for cleaning, inspection and lubrication. Simple, visual standards make them stick:
- Mark correct oil levels with a clear line, so right and wrong are obvious at a glance.
- Colour-code lubrication points and their matching oil cans to prevent mix-ups.
- Fit transparent guards or inspection windows so checks take seconds, not spanners.
- Keep a short, tick-box routine for the start of each shift rather than a long manual.
The aim is a check anyone can do correctly in a couple of minutes, every time.
How does autonomous maintenance help operators catch faults early?
It gives operators a routine and a language for spotting trouble while it is still small. Trained operators use their senses on purpose, listening for new noises, feeling for heat and vibration, looking for leaks and watching gauges drift. When they find something they cannot fix, they attach an abnormality tag, often called a fault tag, to flag it for maintenance. This simple habit creates a visible queue of early warnings. A loose guard tagged today is a five-minute job. The same guard ignored becomes a breakdown, or worse, a safety incident.
What training do operators need?
Operators need enough understanding to care for the machine safely and to know the limits of their role. That means practical training in the machine’s basic function, the correct cleaning and lubrication methods, what normal looks like set against what a fault looks like, and clear instruction on when to stop and call maintenance. Good training also covers safety, above all lockout procedures, so nobody reaches into a machine they should not. A TPM consultancy usually builds this through hands-on coaching at the machine rather than classroom theory, because the skill is physical and specific.
Common pitfalls to avoid
The shift fails when it is treated as offloading work rather than sharing it. Watch for a few traps:
- Dumping tasks on operators without training, time or the right tools.
- Leaving the boundary vague, so jobs fall between operators and maintenance.
- Skipping the safety basics, which turns a care routine into a hazard.
- Logging abnormality tags that maintenance never closes out, which kills trust fast.
Frequently asked questions
Is autonomous maintenance about saving money on maintenance staff?
No. It is about using skills well. Operators handle basic care so technicians can concentrate on complex, high-value work. Most plants find their maintenance team becomes more effective, not smaller.
What does jishu hozen mean?
Jishu hozen is the Japanese term for autonomous maintenance, and it translates roughly as self maintenance. It is one of the core pillars of TPM and usually the first one a plant develops.
Can operators do maintenance safely?
Yes, within clear limits and with proper training. Autonomous maintenance deliberately keeps operators away from high-risk work behind guards or on live systems, and leans heavily on safety procedures such as lockout.
How is autonomous maintenance different from preventive maintenance?
Autonomous maintenance is the daily care operators give their own machines. Preventive, or planned, maintenance is the scheduled work the maintenance team performs. The two work together, with operators handling the basics so technicians can plan deeper interventions.
Where should a plant start with autonomous maintenance?
Start with a single pilot machine and a deep initial clean. Fix the contamination sources you uncover, set simple CIL standards, and spread the approach only once the pilot is working and operators can see the value.
Conclusion
So, should operators be responsible for machine care? Yes, for the daily basics that keep a machine healthy, and no further than their training and clear boundaries allow. Autonomous maintenance works because it puts routine care in the hands of the people closest to the equipment, while leaving skilled repair to the specialists. Draw the line clearly, train people properly, and the machine gains a first line of defence that is on duty every shift.
If you are weighing how much machine care your operators should own, reach out to the team at https://ribcon.com to shape an autonomous maintenance plan that fits your floor.
