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Principle 4—Define the Day-to-Day Maintenance Process

We defined the day-to-day maintenance process using the diagram shown in Figure 5.1

Day to Day Maintenance Process

Figure 5.1 Day to Day Maintenance Process

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The main features of this process are:

  • • The key participants in the Maintenance process work as a team; priorities are clearly defined and understood, and all work is screened by this team.
  • • Proactive work is determined with the help of risk-based methodologies; it is planned and scheduled for a long period. This is the long look-ahead plan of known work.
  • • Emergent work is subjected to daily scrutiny and appropriately prioritized.
  • • Backlog is used as a repository of work. It is managed within defined parameters, e.g., ceilings on total volume and residence time for each item.
  • • The current week's work plan is firm. It consists of proactive work and all high-priority emergent work which was known before issuing the plan the week before.
  • • Work on this plan will be displaced by new emergent work only if the team decides that it has high enough priority. Otherwise it will be put in the repository.
  • • The following weeks' work plans consist of proactive work and appropriately scheduled emergent work from the repository.
  • • After execution, every week's plan is reviewed; learning is extracted and applied in the future.
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