PM Optimization

PM Optimization as a Routine

Anyone that has ever tended or raised livestock , be it rabbits, chickens, goats or cattle, knows that routines are important.  Without routines, you run the risk of causing   undue suffering on the part of your animals or end up with a monumental mess to clean up.

Unfortunately, when Preventive Maintenance Optimization (PMO) is considered, most people immediately revert, in their mind, to the concept of a workshop.  However, the fact is that the most effective form of PMO is that which takes place incrementally, over time, via routines and feedback.

One of the  routines  involves regularly scheduling a planned PM.  Planned, meaning that the conduct and materials involved in the PM are well laid out and itemized.  Scheduled, meaning that this work was known, at least 72 hours in advance.

Another routine that optimizes the PM is the routine of feedback. The feedback of your maintenance personnel is the most valuable form of intelligence reinforcing the continuous improvement of your maintenance systems.

How often should PM strategies and tasks be reviewed?

The question is often asked “how often should PM strategies and tasks be reviewed?’"Here are 3 processes an organization should have in place to support PM reviews.

Root Cause Analysis  review:  Each time an RCA is performed on failed equipment a review of the maintenance strategy should also be performed.  The review of the maintenance strategy including the PM tasks should determine if a task exists that is supposed to prevent or identify early the incipient failure that ultimately led to the failure of the equipment. 

If a task exists it should be determined if the task was performed properly.  If the task was performed properly then the task should be changed as its ineffective.  If the task was not performed properly then training should be provided to so that the task will be performed properly in the future. If no task exists then one should be developed and added to the PM procedure and the maintenance strategy updated.

Analysis & Validation (Quick Tip)


PM optimization has two key phases, Analysis and Validation. I am going to cover a few key principles for each phase in this blog tip. I see the same errors voiding the performance enhancing purpose of PM Optimization efforts so i want to pass on what i have learned to support others in their PM improvement endeavors.

During the analysis phase the key consideration is to carefully prepare, in advance, a detailed summary of actual PMs and tasks associated with them. Those tasks should be challenged by the most knowledgeable people against particular failure modes. If the task lacks meaning and the ability to prevent a potential failure, the team should decide if the task should be re-written, removed or worth changing is worth having a run to failure maintenance strategy in place. It is importantto understand the risk and consequences assumed with a run to failure strategy.