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Introducing World Class KPIs & KPI #3 - PM (& PdM) to Corrective Ratio

Bill Mountjoy, CMRP & CDG VP of reliability engineering

Key Performance Indicators (KPIs) provide a snapshot of the status of maintenance effectiveness, letting you know where to focus your attention and should be reported, trended, and communicated on a monthly basis throughout the organization. KPIs raise a “red flag” on potential issues as well as highlight key areas of improvement and success.

“When you can measure what you are speaking about and express it in numbers, you know something about it; but when you cannot measure it, when you cannot express it in numbers your knowledge is unsatisfactory.

— Lord Kelvin, 1884

However, many times, maintenance and facilities departments lack KPI reporting and/or may not know what the KPI world-class maintenance standards are. Look no further, CMMS Data Group is here to help and we’re happy to introduce the 1st KPI, PM (& PdM) to Corrective Ratio, to you.

The question often gets asked: “Are we doing the right number of PMs and PdMs frequently enough?” In a reactive environment, it’s common to see excessive PMs and PdMs being created based on reactive decision making. It’s the “something has failed so let’s make another PM and PdM and do it twice as frequently” approach. The PM (& PdM) to Corrective Ratio is a simple, but effective, KPI to help answer this question.

Definition

The PM (& PdM) to Corrective Ratio takes the number of PM and PdM inspections performed during the month and relates it to the number of corrective work orders that were generated from those inspections. The goal for this ratio is 6:1. (For every 6 PMs and PdMs, 1 corrective work order should result.)

  • PM to Corrective Ratio = # of PMs and PdMs Completed / # of Corrective Work Orders Generated

What does the ratio tell me?

High (> 6:1)

If the ratio is greater than 6:1, less than expected corrective work orders are being generated from PM and PdM inspections and this could mean that:

  • PMs are being performed too often creating excess cost and downtime. Additionally, over-PMing can induce failures into the system by excessive intervention.
  • Corrective work isn’t being recorded properly.
  • The content and quality of PM instructions are inadequate or not being properly followed.

Low (< 6:1)

If the ratio is less than 6:1, more corrective work orders are being generated than expected and this could mean that:

  • The interval between PMs may be too large and issues may not be identified soon enough resulting in equipment breakdowns.
  • Not enough PMs (weekly, monthly, quarterly etc.) are in the system.

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My favorite part about MVP Plant is the technical support team.

Vickie Probst, Purchasing Supervisor, DaBecca Natural Foods

Communication is key and MVP Plant makes that possible.

Bill Hackett, Maintenance Manager, Clyde's Donuts

Our maintenance costs flatlined and we now produce twice the amount of donuts.

Bill Hackett, Maintenance Manager, Clyde's Donuts

My favorite part about MVP Plant is the technical support team.

Vickie Probst, Purchasing Supervisor, DaBecca Natural Foods

Communication is key and MVP Plant makes that possible.

Bill Hackett, Maintenance Manager, Clyde's Donuts

Our maintenance costs flatlined and we now produce twice the amount of donuts.

Bill Hackett, Maintenance Manager, Clyde's Donuts

My favorite part about MVP Plant is the technical support team.

Vickie Probst, Purchasing Supervisor, DaBecca Natural Foods

Communication is key and MVP Plant makes that possible.

Bill Hackett, Maintenance Manager, Clyde's Donuts

Our maintenance costs flatlined and we now produce twice the amount of donuts.

Bill Hackett, Maintenance Manager, Clyde's Donuts

We reduced our reactive time by almost 5% right off the bat.

Stuart Brandon, Maintenance Manager, Black Cat Wear Parts

The reports, by far, are what I really like about MVP Plant. I can forecast what I’m going to spend this month and the next couple of months.

Don Robertson, Maintenance Planner, DanoneWave

MVP Plant does everything that you need it to do to have a good maintenance department.

Stephen Lord, Maintenance Planner, Oberto Brands

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Contact CMMS Data Group today for more information.

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