Why TPM gets abandoned and why that is a tragedy
Total Productive Maintenance was developed by Seiichi Nakajima at the Japan Institute of Plant Maintenance in the 1970s. A 2021 study in the International Journal of Production Research analysed 78 TPM implementations and found a 34 percent abandonment rate before the first maturity checkpoint, with an average implementation time to measurable OEE improvement of 28 months. Those two numbers explain most of the scepticism about TPM in US manufacturing.
What the outcomes look like when it is sustained
A meta-analysis of 47 TPM case studies published in the Journal of Manufacturing Technology Management found average OEE improvements of 15 to 25 percentage points in plants sustaining the programme for three years or more. MTTR improvements averaged 32 percent. Maintenance cost as a percentage of replacement asset value fell from an average of 4.2 percent to 2.8 percent. The Japan Institute of Plant Maintenance reports that PM Award recipients — plants certified as fully implementing TPM — average 87 percent OEE, compared to a global manufacturing average of approximately 60 percent.
For context on what drives MTTR improvement, see our guide on MTBF and the interventions that actually move it. The 32 percent MTTR improvement in successful TPM programmes comes from the same root cause: better information at the moment of fault.
The three conditions that separate success from abandonment
The International Journal of Production Research study identified three factors that statistically separated successful implementations: visible senior management commitment measured by executive participation in TPM steering committees, dedicated time for autonomous maintenance activities without corresponding production target reductions, and a knowledge management system that captured focused improvement discoveries and made them accessible plant-wide.
The knowledge management element that most programmes underinvest
Focused improvement teams that identify a root cause and resolve it — but do not capture the resolution in a searchable system — produce local benefits that do not compound into systemic improvement. When the team moves to the next improvement project, the knowledge of what was found and why it worked stays in the room. Six months later, a different team on a different shift encounters the same fault and starts from zero.
The JISPM tracks this as one of the primary reasons TPM benefits plateau after the initial improvement wave — the knowledge created through improvement activity is not institutionalised. This is the same dynamic that drives the skills gap problem: knowledge that lives only in people's heads leaves when those people leave.
YAFEX supports TPM programmes by providing searchable knowledge management across your plant's equipment and work order history. Talk to us.
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